diff --git a/QtHPConnect.pro b/QtHPConnect.pro
index 89d4dfd..b61db6e 100644
--- a/QtHPConnect.pro
+++ b/QtHPConnect.pro
@@ -77,7 +77,8 @@ SOURCES += \
     hpusb.cpp \
     hp_settingsdlg.cpp \
     cntfilesystemmodel.cpp \
-    abstractdata.cpp
+    abstractdata.cpp \
+    matrixdata.cpp
 
 HEADERS += \
         mainwindow.h \
@@ -116,7 +117,8 @@ HEADERS += \
     hp_settingsdlg.h \
     version.h \
     cntfilesystemmodel.h \
-    abstractdata.h
+    abstractdata.h \
+    matrixdata.h
 
 FORMS += \
     mainwindow.ui \
diff --git a/TODO.md b/TODO.md
index 34b4198..e1e97f8 100644
--- a/TODO.md
+++ b/TODO.md
@@ -6,15 +6,21 @@
     Content - fix resizing
     Create storage path if it does not exist
     Load and read program files
-    Load Screen shot and display
     Add options - set default paths
+
+    Drag and drop from content window to calc
+
 2 Comms
-    Understand what the calc is doing!
 
-    CAN READ ALL DATA!
-    ------------------
-    Tidy hpusb and start decoding
+    Libusb hot swap
 
-    Sections are group by function starting 00 F7
+    Async transfer
+
+    CRC checks are not working - this will be a problem on sending data. Worried that a byte is being
+    gained or lost on transfer
+
+    Decoding data. Lists 90% complete
+
+    Extract vars file
 
 3 Backup to disk
diff --git a/abstractdata.cpp b/abstractdata.cpp
index abe8fa9..fa057b6 100644
--- a/abstractdata.cpp
+++ b/abstractdata.cpp
@@ -1,8 +1,126 @@
 #include <QDebug>
+#include <QTextCodec>
+#include <QtMath>
 
 #include "global.h"
 #include "abstractdata.h"
 #include "hpusb.h"
+#include "matrixdata.h"
+
+uint16_t crc16_block(const uint8_t * buffer, uint32_t len);
+
+int BCD2I(quint16 num) {
+
+        int ds,ret;
+        if(num>0) {
+            ds=((num&0xF0)>>4)*10;
+            ds+=(num&0x0F);
+            ret=ds;
+        }
+        else {
+            ret=0;
+        }
+
+//        qDebug()<<QString("Num= %1 Ret= %2").arg(num,1,16).arg(ret);
+    return ret;
+}
+
+long TwosComplement2Int(long rawValue)
+{
+
+    long ret;
+
+    qDebug()<<QString("List 2C: %1").arg(rawValue&0x80000000,1,16);
+
+    // If a positive value, return it
+    if ((rawValue & 0x80000000) == 0)
+    {
+        ret = rawValue;
+    }
+    else {
+       // Otherwise perform the 2's complement math on the value
+      qDebug()<<QString("List 2C Negative Detected");
+
+       ret = (long)(~(rawValue - 0x01)) * -1;
+//          ret = ~rawValue;
+    }
+    qDebug()<<QString("List 2C: %1 %2").arg(rawValue,1,16).arg(ret,1,16);
+
+    return ret;
+}
+
+qint8 TwosComplement2Int(quint8 rawValue)
+{
+
+    qint8 ret;
+
+    qDebug()<<QString("List 2C UINT8: %1").arg(rawValue&0x80,1,16);
+
+    // If a positive value, return it
+    if ((rawValue & 0x80) == 0)
+    {
+        ret = rawValue;
+    }
+    else {
+       // Otherwise perform the 2's complement math on the value
+      qDebug()<<QString("List 2C UINT8 Negative Detected");
+
+       ret = ~(rawValue - 0x01) * -1;
+//          ret = ~rawValue;
+    }
+    qDebug()<<QString("List 2C UINT8: %1 %2").arg(rawValue,1,16).arg(ret,1,16);
+
+    return ret;
+}
+
+
+itemData extractNubmer(QByteArray item) {
+;
+    itemData listvalue;
+    QString msg;
+    QString value=QStringLiteral("");;
+    qint8 sign;
+    int multi;
+    long exp;
+    double base;
+    double m,ret;
+    int k;
+
+        multi=item[0];
+        base=BCD2I(item[2]);
+        sign=TwosComplement2Int((quint8)item[3]);
+
+        exp=(((((((((qint8)item[7]&0xFF)<<8)+((qint8)item[6]&0xFF))<<8)+((qint8)item[5]&0xFF)))<<8)+((qint8)item[4]&0xFF));
+        exp=TwosComplement2Int(exp);
+
+        m=0;
+
+        for (k=8;k<16;k++) {
+            if(item[k]>0) {
+                m=m*0.01+(double)multi*BCD2I(item[k]);
+            }
+        }
+        ret=sign*m*qPow(base,exp);
+
+        value=QString("%1E%2").arg(m).arg(exp);
+
+//        msg=QString("multi:%1 base:%2 sign:%3 exp:%4 m:%5").arg(multi).arg(base).arg(sign).arg(exp).arg(m);
+        msg=QString("value: %1").arg(value);
+
+        log(msg);
+ //       log(value);
+        log((QString("Ans: %1").arg(ret)));
+       qDebug()<<msg;
+       qDebug()<<ret;
+
+       listvalue.dValue=ret;
+       listvalue.sValue=QString("%1").arg(ret);
+
+       return listvalue;
+}
+
+
+////////////////////////
 
 AbstractData::AbstractData(QString name_in, hp_DataType type_in)
 {
@@ -56,12 +174,17 @@ hp_pkt_type AbstractData::getFileCode() {
 
 void AbstractData::setData(QByteArray data_in) {
     data = data_in;
+    parseData();
 }
 
 QByteArray AbstractData::getData() {
     return data;
 }
 
+void AbstractData::parseData() {
+     qDebug()<<"AbstractData::parseData";
+}
+
 //REAL
 //
 Application::Application(QString name_in, hp_DataType type_in):
@@ -70,6 +193,9 @@ Application::Application(QString name_in, hp_DataType type_in):
     setFileCode(HP_TP_FUNCTIONS);
 }
 
+void Application::parseData() {
+
+}
 
 
 //REAL
@@ -80,6 +206,9 @@ Real::Real(QString name_in, hp_DataType type_in):
     setFileCode(HP_TP_SETTINGS);
 }
 
+void Real::parseData() {
+
+}
 
 //COMPLEX
 Complex::Complex(QString name_in, hp_DataType type_in):
@@ -88,12 +217,101 @@ Complex::Complex(QString name_in, hp_DataType type_in):
     setFileCode(HP_TP_SETTINGS);
 }
 
+void Complex::parseData() {
+
+}
 
 //LIST
 List::List(QString name_in, hp_DataType type_in):
     AbstractData(name_in, type_in) {
 
     setFileCode(HP_TP_LIST);
+    values.clear();
+}
+
+QByteArray List::getData() {
+
+    //temp
+
+    //parseData();
+
+    return data;
+
+}
+
+void List::parseData() {
+
+    QByteArray a1;
+    QByteArray item;
+    itemData listvalue;
+    QString name;
+    int len;
+    int start = 8;
+    int j;
+
+    qDebug()<<"List: Parsing a List";
+
+    name=getName();
+
+    a1=data;
+    len=a1[4];
+
+    for(j=0;j<len;j++) {
+
+        item=a1.mid(start,16);
+        listvalue=extractNubmer(item);
+        setListItem(-1,listvalue);
+        start+=16;
+    }
+    main_err->dump((uint8_t *)a1.constData(),a1.size());
+}
+
+//Gets a list item from the list
+itemData List::getListItem(int row) {
+
+    itemData null;
+
+    if (row<values.size()) {
+        return values.at(row);
+    }
+    return null;
+}
+
+//Gets a list item in the list at position row
+void List::setListItem(int row, itemData item) {
+
+    //May need to pad for missing items
+    values.insert(row,item);
+
+}
+
+//Gets a  string representation of the list item in the list at position row
+QString List::getItem(int row) {
+    return QString("%1").arg(values.at(row).dValue);
+}
+
+//Passes a  string representation of the list item in the list at position row
+void List::setItem(int row, QString string) {
+
+    itemData item;
+    item.dValue=string.toDouble();
+    item.sValue=string;
+    setListItem(row,item);
+}
+
+//Passes a  string representation of the list item in the list at position row
+void List::setItem(int row, QString string, double value) {
+
+    itemData item;
+    item.dValue=value;
+    item.sValue=string;
+    setListItem(row,item);
+}
+
+//Passes the number of entries in the list
+int List::getListSize() {
+
+    return values.size();
 }
 
 //Matrix
@@ -104,6 +322,101 @@ Matrix::Matrix(QString name_in, hp_DataType type_in):
     setFileCode(HP_TP_MATRIX);
 }
 
+void Matrix::parseData() {
+
+    QByteArray a1;
+    QByteArray item;
+    itemData listvalue;
+    QString name;
+    QString msg;
+    QString value=QStringLiteral("");;
+    int len;
+    int start = 8;
+    qint8 sign;
+    int multi;
+    long exp;
+    double base;
+    double m,ret;
+    int k,j;
+    QString ds;
+
+    qDebug()<<"Matrix: Parsing a Matrix";
+
+    name=getName();
+    log(name);
+
+    a1=data;
+    len=a1[4];
+    main_err->dump((uint8_t *)a1.constData(),a1.size());
+}
+
+//Gets a item from the matrix
+itemData Matrix::getListItem(int row, int column) {
+
+    itemData data;
+    data=mdata.at(row,column);
+    return data;
+}
+
+//Gets a list item in the matrix at position row,column
+void Matrix::setListItem(int row, int column, itemData item) {
+
+    mdata.insert(row,column,item);
+
+}
+
+//Gets a  string representation of the list item in the matrix at position row,column
+QString Matrix::getItem(int row, int column) {
+
+    itemData data;
+    QString item;
+
+    data=mdata.at(row,column);
+    item=data.sValue;
+
+    return item;
+}
+
+//Passes a  string representation of the item in the matrix at position position row,column
+void Matrix::setItem(int row, int column, QString string) {
+
+    itemData item;
+    item.dValue=string.toDouble();
+    item.sValue=string;
+    setListItem(row,column, item);
+}
+
+//Passes a  string representation of the list item in the matrix at position row,column
+void Matrix::setItem(int row, int column, QString string, double value) {
+
+    itemData item;
+    item.dValue=value;
+    item.sValue=string;
+    setListItem(row,column,item);
+}
+
+//Passes the number of entries in the list
+m_Size Matrix::getMatrixSize() {
+
+    m_Size size;
+    size.row=mdata.rows();
+    size.column=mdata.columns();
+
+    return size;
+}
+
+//Passes the number of entries in the list
+int Matrix::getMatrixRows() {
+
+    return mdata.rows();
+}
+
+//Passes the number of entries in the list
+int Matrix::getMatrixColumns() {
+
+    return mdata.columns();
+}
+
 //Program
 Program::Program(QString name_in, hp_DataType type_in, QString data):
     AbstractData(name_in, type_in) {
@@ -120,23 +433,60 @@ void Program::setProg(QString data_in) {
     text=data_in;
 }
 
+void Program::parseData() {
+
+    int16_t len1,len2;
+    QTextCodec * codec = QTextCodec::codecForName("UTF-16LE");
+
+    QByteArray a1;
+    a1=getData();
+    text = codec->toUnicode(a1);
+  }
+
+
 //Notes
-Notes::Notes(QString name_in, hp_DataType type_in, QString data):
+Notes::Notes(QString name_in, hp_DataType type_in, QString data_in):
     AbstractData(name_in, type_in) {
 
     setFileCode(HP_TP_NOTE);
-    setNote(data);
-    qDebug()<<"Taking Note";
-    qDebug()<<data;
+    setNote(data_in);
 }
 
 QString Notes::getNote() {
 
-    qDebug()<<"Getting Note";
-    qDebug()<<text;
     return text;
 }
 
+void Notes::parseData() {
+
+//    quint16 len1,len2;
+    int formatstart;
+    quint16 crc;
+    QTextCodec * codec = QTextCodec::codecForName("UTF-16LE");
+
+    QByteArray a1,a3;
+
+    a1=getData();
+//    crc=qChecksum(a1.mid(4,-1),a1.size()-4,Qt::ChecksumIso3309);
+//    crc=crc16_block((uint8_t *)a1.mid(4,-1).constData(),a1.size()-4);
+
+/*
+    QDataStream ds(a1);
+    ds.setByteOrder(QDataStream::LittleEndian);
+
+    ds >> len1;
+    ds >> len2;
+*/
+
+    formatstart=a1.indexOf("C\x00S\x00W\x0D\x001\x001\x00");
+    a3=a1.mid(formatstart,-1);
+    a1=a1.mid(0,formatstart);
+
+    text = codec->toUnicode(a1);
+    format = codec->toUnicode(a3);
+
+}
+
 void Notes::setNote(QString data_in) {
     text=data_in;
 }
diff --git a/abstractdata.h b/abstractdata.h
index f495526..0600d99 100644
--- a/abstractdata.h
+++ b/abstractdata.h
@@ -4,6 +4,7 @@
 #include <QString>
 #include <QByteArray>
 #include "hpusb.h"
+#include "matrixdata.h"
 
 enum hp_DataType{
                 HP_MAIN=0,
@@ -19,6 +20,11 @@ enum hp_DataType{
                 HP_SCREEN=10
 };
 
+struct m_Size {
+    int row;
+    int column;
+};
+
 class AbstractData
 {
 
@@ -26,6 +32,8 @@ private:
     QString name;
     hp_DataType type;
     hp_pkt_type file_code;
+
+protected:
     QByteArray data;
 
 public:
@@ -40,54 +48,85 @@ public:
     hp_pkt_type getFileCode();
     void setData(QByteArray);
     QByteArray getData();
+    virtual void parseData();
 };
 
 
 class Application: public AbstractData
 {
+private:
+    void parseData();
 public:
     Application(QString, hp_DataType);
 };
 
-class Real: public AbstractData
+class Real:  public AbstractData
 {
+private:
+    void parseData();
 public:
     Real(QString, hp_DataType);
 };
 
 class Complex: public AbstractData
 {
+private:
+    void parseData();
 public:
     Complex(QString, hp_DataType);
 };
 
-class List: public AbstractData
+
+class List:  public AbstractData
 {
+private:
+    QList <itemData>values;
+    void parseData();
 public:
     List(QString, hp_DataType);
+    QByteArray getData();
+    itemData getListItem(int);
+    void setListItem(int, itemData);
+    QString getItem(int);
+    void setItem(int, QString);
+    void setItem(int, QString, double);
+    int getListSize();
 };
 
-class Matrix: public AbstractData
+class Matrix:  public AbstractData
 {
+private:
+    MatrixData mdata;
+    void parseData();
 public:
     Matrix(QString, hp_DataType);
+    itemData getListItem(int row, int column);
+    void setListItem(int, int, itemData);
+    QString getItem(int row, int column);
+    void setItem(int, int, QString);
+    void setItem(int, int, QString, double);
+    m_Size getMatrixSize();
+    int getMatrixRows();
+    int getMatrixColumns();
 };
 
-class Program: public AbstractData
+class Program:  public AbstractData
 {
 private:
     QString text;
+    void parseData();
 public:
     Program(QString, hp_DataType, QString);
     void setProg(QString);
     QString getProg();
 };
 
-class Notes: public AbstractData
+class Notes:  public AbstractData
 {
 private:
         QString text;
-
+        QString format;
+        void parseData();
 public:
     Notes(QString, hp_DataType, QString);
     void setNote(QString);
diff --git a/hp_mditexteditor.cpp b/hp_mditexteditor.cpp
index 321fac0..f90d6c2 100644
--- a/hp_mditexteditor.cpp
+++ b/hp_mditexteditor.cpp
@@ -27,16 +27,12 @@ void hp_mdiTextEdit::setup() {
     QString text;
     textEdit = new textEditor(this);
 
-    qDebug()<<"hp_mdiTextEdit::setup";
-
     if (data) {
 
-        qDebug()<<"hp_mdiTextEdit::setup - Data not null";
         qDebug()<<data->getName();
         qDebug()<<data->getType();
 
         if (data->getType()==HP_NOTE) {
-            qDebug()<<"hp_mdiTextEdit::setup - Its a Note";
             Notes *note;
             note=(Notes *)data;
             text=note->getNote();
diff --git a/hp_mdivariableedit.cpp b/hp_mdivariableedit.cpp
index 34314b9..850523a 100644
--- a/hp_mdivariableedit.cpp
+++ b/hp_mdivariableedit.cpp
@@ -2,24 +2,33 @@
 #include "hptreeitem.h"
 
 
-hp_mdiVariableEdit::hp_mdiVariableEdit(QWidget *parent, hpTreeItem * treeItem)
+hp_mdiVariableEdit::hp_mdiVariableEdit(QWidget *parent,
+            hpTreeItem * treeItem,
+            hpCalcData * dataStore)
     : QMdiSubWindow(parent)
 {
     setMinimumSize(200,200);
     setMaximumSize(1000,1000);
     setSizePolicy(QSizePolicy::Ignored,QSizePolicy::Ignored);
-    setup();
+
     hptreeitem=treeItem;
+    hpcalc = dataStore;
+    filename=treeItem->getFileName();
+    type=treeItem->getType();
+
+    setup();
+
     setWindowTitle(treeItem->getFileName());
 }
 
 void hp_mdiVariableEdit::setup() {
 
-    tableView = new QTableView(this);
-    varmodel = new varTableModel(this);
-    tableView->setModel(varmodel);
-    setWidget(tableView);
-
+    if (hpcalc) {
+        varmodel = new varTableModel(this,hpcalc,filename,type);
+        tableView = new QTableView(this);
+        tableView->setModel(varmodel);
+        setWidget(tableView);
+    }
 }
 
 void hp_mdiVariableEdit::show() {
diff --git a/hp_mdivariableedit.h b/hp_mdivariableedit.h
index 282a9fe..8c02f4c 100644
--- a/hp_mdivariableedit.h
+++ b/hp_mdivariableedit.h
@@ -6,6 +6,7 @@
 #include <QMdiSubWindow>
 #include <QTableView>
 #include "vartablemodel.h"
+#include "hpdata.h"
 
 class hpTreeItem;
 
@@ -14,13 +15,19 @@ class hp_mdiVariableEdit : public QMdiSubWindow
     Q_OBJECT
 
 protected:
-        QTableView * tableView;
-        hpTreeItem * hptreeitem;
-        varTableModel * varmodel;
+        QTableView * tableView =nullptr;
+        hpTreeItem * hptreeitem  =nullptr;
+        varTableModel * varmodel  =nullptr;
+        hpCalcData * hpcalc =nullptr;
+        QString filename;
+        hp_DataType type;
+        void setup();
 
 public:
-    explicit hp_mdiVariableEdit(QWidget *parent = nullptr, hpTreeItem * treeItem = nullptr);
-    void setup();
+    explicit hp_mdiVariableEdit(QWidget *parent = nullptr,
+                                hpTreeItem * treeItem = nullptr,
+                                hpCalcData * dataStore =nullptr
+                                );
     void show();
     ~hp_mdiVariableEdit();
 
diff --git a/hpdata.cpp b/hpdata.cpp
index 5e6d16f..2b2fbcc 100644
--- a/hpdata.cpp
+++ b/hpdata.cpp
@@ -210,6 +210,7 @@ void hpCalcData::recvProg(hp_Prog program) {
     //qDebug()<<program.prog;
 
     Program * obj = new Program(program.filename,HP_PROG, program.prog);
+    obj->setData(program.data);
     addData(obj);
 
     emit emitChange(HP_PROG);
@@ -224,6 +225,7 @@ void hpCalcData::recvNote(hp_Note note) {
     qDebug()<<note.filename;
 
     Notes * obj = new Notes(note.filename,HP_NOTE, note.text);
+    obj->setData(note.data);
     addData(obj);
 
     emit emitChange(HP_NOTE);
@@ -238,12 +240,14 @@ void hpCalcData::recvData(hp_Data data) {
         case HP_APP: {
             qDebug()<<"hpCalcData::recvData - Application";
             Application * obj = new Application(data.name,data.type);
+            obj->setData(data.data);
             addData(obj);
             emit emitChange(HP_APP);
         }
         break;
      case HP_LIST: {
             List * obj = new List(data.name,data.type);
+            obj->setData(data.data);
             addData(obj);
             emit emitChange(HP_LIST);
         }
@@ -251,12 +255,12 @@ void hpCalcData::recvData(hp_Data data) {
     case HP_MATRIX: {
             qDebug()<<"hpCalcData::recvData - Matrix";
             Matrix * obj = new Matrix(data.name,data.type);
+            obj->setData(data.data);
             addData(obj);
             emit emitChange(HP_MATRIX);
         }
         break;
     }
-
 }
 
 
diff --git a/hpdata.h b/hpdata.h
index 904b21e..3e5c1a7 100644
--- a/hpdata.h
+++ b/hpdata.h
@@ -54,11 +54,13 @@ struct hp_Change {
 struct hp_Prog {
     QString filename;
     QString prog;
+    QByteArray data;
 };
 
 struct hp_Note {
     QString filename;
     QString text;
+    QByteArray data;
 };
 
 struct hp_Data {
diff --git a/hptreeitem.cpp b/hptreeitem.cpp
index 14db1ec..b32529e 100644
--- a/hptreeitem.cpp
+++ b/hptreeitem.cpp
@@ -117,21 +117,26 @@ void hpTreeItem::clickAction(QMdiArea * mdiwin) {
                 hpvaredit ->show();
             break;
         case HP_LIST:
-            qDebug()<<column();
             if (hpvaredit==nullptr) {
                 if (calc) {
                     data=calc->getData(getFileName(),HP_LIST);
                 }
                 if (data) {
-                    hpvaredit = new hp_mdiVariableEdit(mdiwin,this);
+                    hpvaredit = new hp_mdiVariableEdit(mdiwin,this,calc);
                 }
             }
             if (hpvaredit!=nullptr)
                     hpvaredit ->show();
             break;
         case HP_MATRIX:
-            if (hpvaredit==nullptr)
-                hpvaredit = new hp_mdiVariableEdit(mdiwin,this);
+            if (hpvaredit==nullptr) {
+                if (calc) {
+                    data=calc->getData(getFileName(),HP_MATRIX);
+                }
+                if (data) {
+                hpvaredit = new hp_mdiVariableEdit(mdiwin,this,calc);
+                }
+            }
             if (hpvaredit!=nullptr)
                     hpvaredit ->show();
             break;
diff --git a/hpusb.cpp b/hpusb.cpp
index ab7c5a9..01d2291 100644
--- a/hpusb.cpp
+++ b/hpusb.cpp
@@ -17,7 +17,7 @@
 #include <libusb.h>
 #include <signal.h>
 
-static inline uint16_t crc16_block(const uint8_t * buffer, uint32_t len) {
+uint16_t crc16_block(const uint8_t * buffer, uint32_t len) {
     static const uint16_t ccitt_crc16_table[256] = {
         0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
         0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
@@ -77,7 +77,7 @@ int hpusb::hp_init()
 
         if(!(ret=libusb_init(&ctx))) {
             log("libusb init ok");
-            libusb_set_debug(ctx,LIBUSB_LOG_LEVEL_DEBUG);
+            libusb_set_debug(ctx,LIBUSB_LOG_LEVEL_WARNING);
             lb_init=1;
             return ret;
     }
@@ -365,7 +365,7 @@ int hpusb::extract_header(uint8_t * raw, usb_header * uh) {
                 uh->pkt_size=Int32;  //assume third byte is header length
                 uh->num_chunks=uh->pkt_size/PRIME_RAW_DATA_SIZE;
                 uh->name_length=0;
-                uh->embedded_crc = (((uint16_t)(raw[7])) << 8) | ((uint16_t)(raw[8]));
+                uh->embedded_crc = (((uint16_t)(raw[8] & 0xFF)) << 8) | ((uint16_t)(raw[7] & 0xFF));
                 uh->headerlen=14;
                 memcpy(uh->header,raw,HEADER_LEN);
                 QString msg = QString("PNG Header chunks: %1 size: %2 Items: %3")
@@ -387,14 +387,12 @@ int hpusb::extract_header(uint8_t * raw, usb_header * uh) {
                 Int32=(Int32<<8)+raw[4];
                 Int32=(Int32<<8)+raw[5];
                 Int32=(Int32<<8)+raw[6];
+                uh->pkt_size=Int32;  //assume third byte is data length
                 uh->pkt_type=raw[7]; //File type being read
-                uh->pkt_size=Int32;  //assume third byte is header length
                 uh->num_chunks=uh->pkt_size/PRIME_RAW_DATA_SIZE;
                 uh->name_length=0;
                 uh->headerlen=8;
-                // For whatever reason the CRC seems to be encoded the other way around compared to receiving files
                 uh->embedded_crc = 0;
-                        //(((uint16_t)(raw[7])) << 8) | ((uint16_t)(raw[8]));
                 memcpy(uh->header,raw,HEADER_LEN);
                 QString msg = QString("File Header chunks: %1 size: %2 items: %3")
                         .arg(uh->num_chunks).arg(uh->pkt_size).arg(uh->items);
@@ -414,7 +412,7 @@ int hpusb::extract_header(uint8_t * raw, usb_header * uh) {
                 Int32=(Int32<<8)+raw[4];
                 Int32=(Int32<<8)+raw[5];
                 Int32=(Int32<<8)+raw[6];
-                uh->pkt_size=Int32;  //assume third byte is header length
+                uh->pkt_size=Int32;  //assume third byte is data length
                 uh->num_chunks=uh->pkt_size/PRIME_RAW_DATA_SIZE;
                 uh->name_length=raw[7];
                 uh->headerlen=11;
@@ -424,8 +422,7 @@ int hpusb::extract_header(uint8_t * raw, usb_header * uh) {
                         .arg(uh->num_chunks).arg(uh->pkt_size).arg(uh->items);
                 qDebug()<<msg;
         }
-
-            qDebug()<<"Unknown Header Found";
+       qDebug()<<"hpusb::extract_header: Unknown Header Found";
      return 1;
 }
 
@@ -443,13 +440,13 @@ int hpusb::submit_sync_r_transfer(hp_Handle * handle, hp_pkt_in * pktin) {
    int extra=0;
    int bytes_to_read;
    int exitflag=1;
-   quint16 crc;
+   quint8 crc;
 
    uint8_t raw[PRIME_RAW_DATA_SIZE];
    QByteArray in_buffer(PRIME_RAW_DATA_SIZE,0);
    libusb_device_handle * devh = handle->usbhandle;
 
-   log("Receive...");
+   log("hpusb::submit_sync_r_transfer: Receive...");
    qDebug()<<QString().sprintf("%s %p",__FUNCTION__,handle->usbhandle);
 
    if (!handle) {
@@ -465,17 +462,18 @@ int hpusb::submit_sync_r_transfer(hp_Handle * handle, hp_pkt_in * pktin) {
 
    while(exitflag) {
     trans_c=0;
+
     //read
     memset(raw,0,PRIME_RAW_DATA_SIZE);
     if ((ret = libusb_interrupt_transfer(devh,ENDPOINT_IN,raw,PRIME_RAW_DATA_SIZE,&trans_c,TIME_OUT))!=0) {
-        qDebug()<<QString("Read Error %1").arg(libusb_error_name(ret));
+        qDebug()<<QString("hpusb::submit_sync_r_transfer: Read Error %1").arg(libusb_error_name(ret));
         log(QString("Read Error: %1\n").arg( libusb_error_name(ret)));
         exitflag=0;
         return ret;
     }
 
     if ((trans_c==0)) {
-        qDebug()<<"End Found";
+        qDebug()<<"hpusb::submit_sync_r_transfer: End Found";
         exitflag=0;
     }
     else
@@ -483,24 +481,25 @@ int hpusb::submit_sync_r_transfer(hp_Handle * handle, hp_pkt_in * pktin) {
         extract_header(raw,&uh1);
 
         if ((uh1.type!=HP_HDR_FILE)) {
-            qDebug()<<"Not a file header exit loop";
+            qDebug()<<"hpusb::submit_sync_r_transfer: Not a file header exit loop";
             exitflag=0;
         }
 
         in_buffer.insert(0,(const char *)&raw[uh1.headerlen],trans_c-uh1.headerlen);
         in_buffer.resize(trans_c-uh1.headerlen);
+        qDebug()<<QString("hpusb::submit_sync_r_transfer: Read %1: Transfered %2").arg(trans_c).arg(trans_c-uh1.headerlen);
         trans=trans_c-uh1.headerlen;
 
         q = (uh1.pkt_size-1)/ (PRIME_RAW_DATA_SIZE);
         r = uh1.pkt_size % (PRIME_RAW_DATA_SIZE);
 
-         qDebug()<<QString("Looking for %1 chunks and %2 bytes read").arg(q).arg(r);
+         qDebug()<<QString("hpusb::submit_sync_r_transfer: Looking for %1 chunks and %2 bytes read").arg(q).arg(r);
 
          //read additional chunks if they exist
          for (chunks=1; chunks<=q; chunks++) {
             extra++;
             trans_c=0;
-            qDebug()<<"More Chunks to be read";
+
             if(chunks<q) {
                 bytes_to_read = PRIME_RAW_DATA_SIZE;
             }
@@ -508,21 +507,20 @@ int hpusb::submit_sync_r_transfer(hp_Handle * handle, hp_pkt_in * pktin) {
                     //bytes_to_read=uh1.pkt_size-trans+uh1.headerlen;
                     bytes_to_read = PRIME_RAW_DATA_SIZE;
             }
-            qDebug()<<"Bytes to read "<<bytes_to_read;
+//            qDebug()<<"Bytes to read "<<bytes_to_read;
 
             memset(raw,0,PRIME_RAW_DATA_SIZE);
             ret = libusb_interrupt_transfer(devh,ENDPOINT_IN,raw,PRIME_RAW_DATA_SIZE,&trans_c,TIME_OUT);
             extract_header(raw, &uh2);
-            qDebug()<<QString("x Reading Chuncks read:%1 should have read:%2").arg(trans_c).arg(bytes_to_read);
+            qDebug()<<QString("hpusb::submit_sync_r_transfer: Reading Chuncks read:%1 should have read:%2").arg(trans_c).arg(bytes_to_read);
             if (trans_c>0) {
-                qDebug()<<QString("Copying %1 bytes").arg(trans_c);
                 in_buffer.append((const char *)&raw[uh2.headerlen],trans_c-uh2.headerlen);
-                qDebug()<<QString("another chunk read %1/%2").arg(chunks).arg(raw[0]);
                 trans+=trans_c-uh2.headerlen;
+                qDebug()<<QString("hpusb::submit_sync_r_transfer: Read %1: Transfered %2: Buffer now %3 ").arg(trans_c).arg(trans_c-uh2.headerlen).arg(trans);
             }
             else
             {
-                     qDebug()<<QString("End detected %1").arg(chunks);
+                     qDebug()<<QString("hpusb::submit_sync_r_transfer End detected %1").arg(chunks);
                      chunks=q;
                      exitflag=0;
                      ret=0;
@@ -530,39 +528,38 @@ int hpusb::submit_sync_r_transfer(hp_Handle * handle, hp_pkt_in * pktin) {
         }
      }
 
-     qDebug()<<QString("Checking for exit trans:%1 pkt_size:%2").arg(trans).arg(uh1.pkt_size);
+     qDebug()<<QString("hpusb::submit_sync_r_transfer: Checking for exit trans:%1 pkt_size:%2").arg(trans).arg(uh1.pkt_size);
      if (trans+uh1.headerlen>=uh1.pkt_size) {
-         //qDebug()<<QString("Exit flag set %1 %2").arg(trans).arg(uh1.pkt_size);
-         //exitflag=0;
      }
 
-     //CRC CHECK HERE
+//     pkt.array=in_buffer.mid(0,uh1.pkt_size-uh1.headerlen+3);
 
-     pkt.array=in_buffer.mid(0,uh1.pkt_size-uh1.headerlen+3);
-     QByteArray temp((const char *)&(uh1.header[0]),14);
+     //PROBLEM : Needed to -1 to get text file to work?
+     pkt.array=in_buffer.mid(0,uh1.pkt_size);
+
+     qDebug()<<QString("hpusb::submit_sync_r_transfer: Read %1: Copied %2 ").arg(trans).arg(pkt.array.size());
+
+     QByteArray temp((const char *)&(uh1.header[0]),uh1.headerlen);
      temp[7]=0x00;
      temp[8]=0x00;
-//     qDebug()<<temp;
-     temp.append(pkt.array);
-     crc=crc16_block((uint8_t *)temp.constData(),temp.size());
 
-     //crc= qChecksum(pkt.array,pkt.array.size());
-     qDebug()<<QString("CRC calc: x%1").arg(crc,0,16)<<
-               QString("CRC Expected x%1").arg(uh1.embedded_crc,0,16);
-     qDebug()<<"Dispatching pkt";
+     temp.append(pkt.array);
+//     crc=crc16_block((uint8_t *)temp.constData(),temp.size());
+     crc= qChecksum(pkt.array,pkt.array.size());
+//     crc=crc16_block((uint8_t *)pkt.array.constData(),pkt.array.size());
+     qDebug()<<QString("hpusb::submit_sync_r_transfer: CRC calc: x%1").arg(crc,0,16)<<
+               QString("hpusb::submit_sync_r_transfer: CRC Expected x%1").arg(uh1.embedded_crc,0,16);
+
      pkt.type=uh1.type;
      pkt.pkt_type=uh1.pkt_type;
      data_dispatch(&pkt);
    }
-
     return ret;
 }
 
 //request to recieve a file transfer
 int hpusb::data_dispatch(hp_pkt_in * pktin) {
 
-//    qDebug()<<"In data dispatch";
-
     switch(pktin->type) {
         case HP_HDR_PNG:
             send_screen_shot(pktin);
@@ -598,9 +595,9 @@ int hpusb::send_info(hp_pkt_in * pkt) {
     qDebug()<<"hpusb:In send info";
     if( pkt->calc!=nullptr) {
 
-       log("unpacking data");
+       log("Unpacking Data");
        int ind=0;
-       QTextCodec * codec = QTextCodec::codecForName("UTF-16 Little Endian");
+       QTextCodec * codec = QTextCodec::codecForName("UTF-16LE");
        QTextCodec * codec8 = QTextCodec::codecForName("UTF-8");
        QByteArray rd= pkt->array;
 
@@ -612,17 +609,36 @@ int hpusb::send_info(hp_pkt_in * pkt) {
             name = codec->toUnicode(str1);
             hpinfo.name=name;
 
-
         //unsigned char searchstr[] = {0x80,0x20,0x80,0x01,0x62};
         //ind+=rd.indexOf((char *) searchstr,ind+64);
         ind +=64;
 
         //find Application Version
-        str1 =rd.mid(ind,10);
+        //FIX
+        str1 =rd.mid(ind,12);
+
+        //test
+        QTime t;
+        QDataStream ds1(str1);
+        ds1.setByteOrder(QDataStream::LittleEndian);
+        ds1>>t;
+        qDebug()<<t;
+
+        QDataStream ds(str1);
+        ds.setByteOrder(QDataStream::LittleEndian);
+
+        uint16_t num;
+        int j;
+        qint16 listnum[6];
+        for (j=0;j<6;j++) {
+            ds >> listnum[j];
+            qDebug()<<listnum[j];
+        }
+        //end test
         qDebug()<<str1;
         QString app;
         app = codec8->toUnicode(str1);
-        hpinfo.appver=app;
+        hpinfo.appver=QString("v%1").arg(listnum[4]);
         log(app);
 
         //find OS Version
@@ -648,7 +664,6 @@ int hpusb::send_info(hp_pkt_in * pkt) {
         }
     else {
             log("Passed a null pointer");
-            qDebug()<<"send_info - null calc pointer";
             return 1;
         }
     //Error
@@ -665,7 +680,7 @@ int hpusb::send_screen_shot(hp_pkt_in * pkt) {
     if( pkt->calc!=nullptr) {
 
         endpos = pkt->array.indexOf("IEND");
-        qDebug()<<"End pos:"<<endpos;
+        qDebug()<<"hpusb::send_screen_shot: End pos:"<<endpos;
         imageData = QByteArray(pkt->array.mid(0,endpos+4));
         screenShot = new QPixmap();
         screenShot->loadFromData(imageData);
@@ -680,16 +695,31 @@ int hpusb::send_screen_shot(hp_pkt_in * pkt) {
 
 //File Processor
 int hpusb::send_file(hp_pkt_in * pkt) {
-    qDebug()<<"hpusb:In File Processor";
+
+    qDebug()<<"hpusb::send_file: In File Processor";
 
     QString filename;
-
     QTextCodec * codec = QTextCodec::codecForName("UTF-16LE");
     QByteArray rd= pkt->array;
-
     int len;
+    qint8 crc;
+
     len = rd[0];
 
+    //TODO
+
+    //What is byte rd[1],rd[2]?
+    //Check if CRC
+
+    QByteArray temp((const char *)pkt->array,pkt->array.size());
+    temp[1]=0x00;
+    temp[2]=0x00;
+    crc=crc16_block((uint8_t *)temp.constData(),temp.size());
+//     crc= qChecksum(pkt.array,pkt.array.size());
+//     crc=crc16_block((uint8_t *)pkt.array.constData(),pkt.array.size());
+    qDebug()<<QString(" hpusb::send_file: CRC calc: %1").arg(crc,0,16)<<
+              QString("hpusb::send_file: CRC Expected %1 %2").arg((qint8)rd[0],1,16).arg((qint8)rd[1],1,16);
+
     //find file name
     QByteArray str1 =rd.mid(3,len);
     filename = codec->toUnicode(str1);
@@ -697,21 +727,27 @@ int hpusb::send_file(hp_pkt_in * pkt) {
 
     qDebug()<<"hpusb:Checking file type";
     qDebug()<<QString("File: %1 Type: %2").arg(filename).arg(pkt->pkt_type);
-    qDebug()<<QString("%1 %2 %3").arg((uint8_t)rd[0],1,16).arg((uint8_t)rd[1],1,16).arg((uint8_t)rd[2],1,16);
+    qDebug()<<QString("%1 %2 %3 %4")
+              .arg((uint8_t)rd[0],1,16).arg((uint8_t)rd[1],1,16).arg((uint8_t)rd[2],1,16).arg((uint8_t)rd[3],1,16);
 
     //handle each file type
     switch (pkt->pkt_type) {
 
-        case HP_TP_SETTINGS:
+        case HP_TP_SETTINGS: {
                qDebug()<<"hpusb:File type settings";
                qDebug()<<filename;
+               hp_Data sData;
+               sData.type=HP_MAIN;
+               sData.name=filename;
+               sData.data=rd.mid(len+3,-1);
+         }
         break;
         case HP_TP_FUNCTIONS: {
                qDebug()<<"hpusb:File functions";
                hp_Data sData;
                sData.type=HP_APP;
                sData.name=filename;
-               sData.data=rd.mid(len,-1);
+               sData.data=rd.mid(len+3,-1);
                pkt->calc->recvData(sData);
         }
         break;
@@ -720,7 +756,7 @@ int hpusb::send_file(hp_pkt_in * pkt) {
             hp_Data sData;
             sData.type=HP_LIST;
             sData.name=filename;
-            sData.data=rd.mid(len,-1);
+            sData.data=rd.mid(len+3,-1);
             pkt->calc->recvData(sData);
         }
         break;
@@ -729,7 +765,7 @@ int hpusb::send_file(hp_pkt_in * pkt) {
             hp_Data sData;
             sData.type=HP_MATRIX;
             sData.name=filename;
-            sData.data=rd.mid(len,-1);
+            sData.data=rd.mid(len+3,-1);
             pkt->calc->recvData(sData);
         }
         break;
@@ -742,8 +778,9 @@ int hpusb::send_file(hp_pkt_in * pkt) {
 
             qDebug()<<QString("%1 %2 %3").arg((uint8_t)rd[len],1,16).arg((uint8_t)rd[len+1],1,16).arg((uint8_t)rd[len+2],1,16);
             size=rd[len+1]; //Is the byte a size?
-            QByteArray str1 =rd.mid(len+3,rd.size()-len-3);
+            QByteArray str1 =rd.mid(len+3,-1);
             note.text = codec->toUnicode(str1);
+            note.data=str1;
             pkt->calc->recvNote(note);
         }
         break;
@@ -756,7 +793,8 @@ int hpusb::send_file(hp_pkt_in * pkt) {
 
              qDebug()<<QString("%1 %2 %3").arg((uint8_t)rd[len],1,16).arg((uint8_t)rd[len+1],1,16).arg((uint8_t)rd[len+2],1,16);
              size=rd[len+1];
-             QByteArray str1 =rd.mid(len+3,rd.size()-len-3);
+             QByteArray str1 =rd.mid(len+3,-1);
+             prog.data=str1;
              prog.prog = codec->toUnicode(str1);
              pkt->calc->recvProg(prog);
         }
diff --git a/hpusb.h b/hpusb.h
index ce96f43..b2ef582 100644
--- a/hpusb.h
+++ b/hpusb.h
@@ -141,10 +141,8 @@ struct hp_Information;
 
 class hpusb
 {
-
     private:
 
-
         struct timespec t1, t2;
 
          enum {
diff --git a/libhpcalcs/src/hpcables.c b/libhpcalcs/src/hpcables.c
index 33a8df3..d01727e 100644
--- a/libhpcalcs/src/hpcables.c
+++ b/libhpcalcs/src/hpcables.c
@@ -2,7 +2,7 @@
  * libhpcables: hand-helds support libraries.
  * Copyright (C) 2013 Lionel Debroux
  * Code patterns and snippets borrowed from libticables & libticalcs:
- * Copyright (C) 1999-2009 Romain Liévin
+ * Copyright (C) 1999-2009 Romain Liévin
  * Copyright (C) 2009-2013 Lionel Debroux
  * Copyright (C) 1999-2013 libti* contributors.
  *
@@ -144,7 +144,7 @@ HPEXPORT int HPCALL hpcables_exit(void) {
 
 
 HPEXPORT const char* HPCALL hpcables_version_get (void) {
-    return VERSION;
+    return "Test";
 }
 
 
diff --git a/libhpcalcs/src/hpcalcs.c b/libhpcalcs/src/hpcalcs.c
index e3519e8..34f8cfc 100644
--- a/libhpcalcs/src/hpcalcs.c
+++ b/libhpcalcs/src/hpcalcs.c
@@ -128,7 +128,7 @@ HPEXPORT int HPCALL hpcalcs_exit(void) {
 
 
 HPEXPORT const char* HPCALL hpcalcs_version_get (void) {
-    return VERSION;
+    return "Test";
 }
 
 
diff --git a/libhpcalcs/src/hpfiles.c b/libhpcalcs/src/hpfiles.c
index 7198a4e..6208efa 100644
--- a/libhpcalcs/src/hpfiles.c
+++ b/libhpcalcs/src/hpfiles.c
@@ -2,7 +2,7 @@
  * libhpfiles: hand-helds support libraries.
  * Copyright (C) 2013 Lionel Debroux
  * Code patterns and snippets borrowed from libticables & libticalcs:
- * Copyright (C) 1999-2009 Romain Liévin
+ * Copyright (C) 1999-2009 Romain Liévin
  * Copyright (C) 2009-2013 Lionel Debroux
  * Copyright (C) 1999-2013 libti* contributors.
  *
@@ -149,7 +149,7 @@ HPEXPORT int HPCALL hpfiles_exit(void) {
 
 
 HPEXPORT const char* HPCALL hpfiles_version_get (void) {
-    return VERSION;
+    return "TEST";
 }
 
 
diff --git a/libhpcalcs/src/hpopers.c b/libhpcalcs/src/hpopers.c
index 19d2fd2..c7fc664 100644
--- a/libhpcalcs/src/hpopers.c
+++ b/libhpcalcs/src/hpopers.c
@@ -2,7 +2,7 @@
  * libhpopers: hand-helds support libraries.
  * Copyright (C) 2013 Lionel Debroux
  * Code patterns and snippets borrowed from libticables & libticalcs:
- * Copyright (C) 1999-2009 Romain Liévin
+ * Copyright (C) 1999-2009 Romain Liévin
  * Copyright (C) 2009-2013 Lionel Debroux
  * Copyright (C) 1999-2013 libti* contributors.
  *
@@ -121,6 +121,6 @@ HPEXPORT int HPCALL hpopers_exit(void) {
 
 
 HPEXPORT const char* HPCALL hpopers_version_get (void) {
-    return VERSION;
+    return "VERSION";
 }
 
diff --git a/matrixdata.cpp b/matrixdata.cpp
new file mode 100644
index 0000000..c70bc1e
--- /dev/null
+++ b/matrixdata.cpp
@@ -0,0 +1,118 @@
+#include "matrixdata.h"
+
+MatrixData::MatrixData()
+{
+    clear();
+}
+
+//Return the item or a zero item
+itemData MatrixData::at(int row, int column)
+{
+    QList<itemData> * rowlist;
+    itemData item;
+
+    if (matrix.size()<row) {
+        rowlist=matrix.at(row);
+        if (rowlist) {
+            if (column<rowlist->size()) {
+                item=rowlist->at(column);
+            }
+        }
+     }
+    return item;
+}
+
+//Insert a new item and resize the list if larger
+void MatrixData::insert(int row, int column, itemData data)
+{
+    QList<itemData> * rowlist;
+
+    if (matrix.size()<row)
+        rowlist=matrix.at(row);
+        if (rowlist) {
+            if (column<rowlist->size()) {
+                rowlist->insert(column,data);
+            }
+            else {
+                resize();
+            }
+    }
+    else {
+        QList<itemData> * newrow = new QList<itemData>;
+        newrow->insert(column,data);
+        matrix.insert(row,newrow);
+        resize();
+    }
+}
+
+//get all columns to same size by padding it zero items
+void MatrixData::resize() {
+
+    QList<itemData> * row;
+    int rows;
+    int maxrows;
+    int columns;
+    int maxcolumns;
+    int i;
+    int j;
+    itemData item;
+    rows = matrix.size();
+
+    for(i=0;i<rows;i++) {
+        columns=matrix.at(i)->size();
+        if (maxcolumns<columns)
+            maxcolumns=columns;
+    }
+
+    for(i=0;i<rows;i++) {
+        columns=matrix.at(i)->size();
+        if (columns<maxcolumns) {
+            row=matrix.at(i);
+            for(j=columns;j<maxcolumns; j++) {
+                row->insert(j,item);
+            }
+        }
+    }
+}
+
+void MatrixData::clear()
+{
+    int i;
+    int r;
+    QList<itemData> * row;
+
+    r=rows();
+
+    for(i=0; i<r;i++) {
+        row=matrix.at(i);
+        if (row) {
+            row->clear();
+            delete row;
+        }
+    }
+    matrix.clear();
+}
+
+int MatrixData::columns()
+{
+    QList<itemData> * row;
+
+    if (matrix.size()>0) {
+        row=matrix.at(0);
+        if (row) {
+            return row->size();
+        }
+    }
+    return 0;
+}
+
+int MatrixData::rows()
+{
+    matrix.size();
+}
+
+MatrixData::~MatrixData()
+{
+    clear();
+}
+\
diff --git a/matrixdata.h b/matrixdata.h
new file mode 100644
index 0000000..61f5e03
--- /dev/null
+++ b/matrixdata.h
@@ -0,0 +1,28 @@
+#ifndef MATRIXDATA_H
+#define MATRIXDATA_H
+
+#include <QList>
+
+struct itemData {
+    double dValue=0.0;
+    QString sValue=QStringLiteral("NaH");
+};
+
+
+class MatrixData
+{
+private:
+    QList<QList<itemData>*> matrix;
+
+public:
+    MatrixData();
+    itemData at(int,int);
+    void insert(int,int,itemData);
+    void clear();
+    int rows();
+    int columns();
+    void resize();
+    ~ MatrixData();
+};
+
+#endif // MATRIXDATA_H
diff --git a/vartablemodel.cpp b/vartablemodel.cpp
index c7562ae..7233a9c 100644
--- a/vartablemodel.cpp
+++ b/vartablemodel.cpp
@@ -1,27 +1,81 @@
+#include "global.h"
 #include "vartablemodel.h"
+#include "abstractdata.h"
 
-varTableModel::varTableModel(QObject *parent)
+varTableModel::varTableModel(QObject *parent,
+        hpCalcData * dataStore,
+        QString file,
+        hp_DataType dtype)
     :QAbstractTableModel(parent)
 {
+    hpcalc = dataStore;
+    filename=file;
+    type=dtype;
+    setup();
+}
 
+void varTableModel::setup()
+{
+    if (hpcalc) {
+
+        dataobj=hpcalc->getData(filename,type);
+
+  //      qDebug()<<"varTableModel: type"<<dataobj->getType();
+    }
+
+   return;
 }
 
 int varTableModel::rowCount(const QModelIndex & /*parent*/) const
 {
-   return 16;
+  int size=16; //should be zero
+  if (type==HP_LIST) {
+      List * list;
+      list = (List *)dataobj;
+      size= list->getListSize();
+  }
+  if (type==HP_MATRIX) {
+      Matrix * matrix;
+      matrix = (Matrix *)dataobj;
+      size= matrix->getMatrixRows();
+  }
+
+   return size;
 }
 
 int varTableModel::columnCount(const QModelIndex & /*parent*/) const
 {
-    return 1;
+    int size=1;
+    if (type==HP_MATRIX) {
+        Matrix * matrix;
+        matrix = (Matrix *)dataobj;
+        size= matrix->getMatrixColumns();
+    }
+    return size;
 }
 
 QVariant varTableModel::data(const QModelIndex &index, int role) const
 {
-    if (role == Qt::DisplayRole)
+    if (role == Qt::DisplayRole) {
+
+      QString item;
+
+      if (type==HP_LIST) {
+             List * list;
+             list = (List *)dataobj;
+             item = list->getItem(index.row());
+             return item;
+       }
+      if (type==HP_MATRIX) {
+             Matrix * matrix;
+             matrix = (Matrix *)dataobj;
+             item = matrix->getItem(index.row(),index.column());
+             return item;
+       }
+
        return QString("Row%1, Column%2")
                    .arg(index.row() + 1)
                    .arg(index.column() +1);
-
+    }
     return QVariant();
 }
diff --git a/vartablemodel.h b/vartablemodel.h
index bc33386..c8abfc7 100644
--- a/vartablemodel.h
+++ b/vartablemodel.h
@@ -3,12 +3,26 @@
 
 #include <QAbstractTableModel>
 
+#include "hpdata.h"
+#include "abstractdata.h"
+
 class varTableModel: public QAbstractTableModel
 {
     Q_OBJECT
 
+private:
+    hpCalcData * hpcalc =nullptr;
+    QString filename;
+    hp_DataType type;
+    AbstractData * dataobj =nullptr;
+    QList<QList<double>> dataarray;
+    void setup();
+
 public:
-    varTableModel(QObject *parent = nullptr);
+    varTableModel(QObject *parent = nullptr,
+                  hpCalcData * dataStore =nullptr,
+                  QString file = QStringLiteral(""),
+                  hp_DataType dtype = HP_MAIN);
     int rowCount(const QModelIndex &parent = QModelIndex()) const override;
     int columnCount(const QModelIndex &parent = QModelIndex()) const override;
     QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;