Qt读取excel的代码，已经封装好了

核心代码：

QAxObject* excel = new QAxObject("Excel.Application");
    excel->setProperty("Visible", false);
    QAxObject* workbooks = excel->querySubObject("WorkBooks");
    workbooks->dynamicCall("Open (const QString&)", QString("c:\\副本1.xls")); //filename
    QAxObject* workbook = excel->querySubObject("ActiveWorkBook");
    QAxObject* worksheets = workbook->querySubObject("WorkSheets");
    QAxObject* worksheet = workbook->querySubObject("Worksheets(int)", 1); //worksheet number
    QAxObject* usedrange = worksheet->querySubObject("UsedRange");
    QAxObject* rows = usedrange->querySubObject("Rows");
    QAxObject* columns = usedrange->querySubObject("Columns");
    int intRowStart = usedrange->property("Row").toInt();
    int intColStart = usedrange->property("Column").toInt();
    int intCols = columns->property("Count").toInt();
    int intRows = rows->property("Count").toInt();
    QAxObject * cell;
    for (int i = intRowStart; i < intRowStart + intRows; i++)
    {
        for (int j = intColStart; j < intColStart + intCols; j++)
        {
            cell = excel->querySubObject("Cells(Int, Int)", i, j );
            QVariant cellValue