So I've been browsing for how to read / write excel files with Qt...I only found this one example:

Qt Code: 
  1. QAxObject* excel = new QAxObject( "Excel.Application", 0 );
  2. //  excel->dynamicCall("SetVisible(bool)",true);
  3.     QAxObject *workbooks = excel->querySubObject( "Workbooks" );
  4.     QAxObject *workbook = workbooks->querySubObject( "Open(const QString&)", "e:/tmp/test.xls" );
  5.     QAxObject *sheets = workbook->querySubObject( "Worksheets" );
  6. 	int count = sheets->dynamicCall("Count()").toInt();
  7. 	QStringList sheetsList;
  8. 	for (int i=1; i<=count; i++)
  9. 	{
  10. 		QAxObject* sheet = sheets->querySubObject( "Item( int )", i );
  11. 		QString name = sheet->dynamicCall("Name()").toString();
  12. 	    sheetsList.append(name);
  13. 	}
  14. 	workbook->dynamicCall("Close()");
  15.     excel->dynamicCall( "Quit()");
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compiles fine, but it crashes on execution on the line
Qt Code: 
  1. QAxObject *workbook = workbooks->querySubObject( "Open(const QString&)", "e:/tmp/test.xls" );
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(yes, the excel file does exist and resides in that directory. Replacing the / with \\ doesn't solve the problem)

what am I doing wrong?