>To clarify, I have been tasked with writing an Excel worksheet parser, the input files can be xls or xlsx format. The data I require can be anywhere in the sheet but always has an identifier in column A where you start your import ( otherwise do nothing) , the minimum number of columns must be specified in advance.
>
>An example usage from command line
>
>
>Createcsv.exe excelfile.xlsx BT118
>
>
>Where BT118 tells my program the identifier and number of columns to look for. I hope this helps.
Why do you need to subclass in this case ?
Gregory