I generate a lot pseudo excel file. Just write row by row on file and separate every cell of a row by a tab and put an .xls extension on the file name. When you double click. It opens directly EXCEL and you have directly the column and the row. It is easier than the CSV or SYLK files. If you want to format it automatically you can either define a VBA macro or use python com.
Cheers, Jean-Paul -- http://mail.python.org/mailman/listinfo/python-list