I am using an Excel template (2003) for report generation. The workbook is of 4 sheets. The original template file works fine. But when I change the template (just remove a single static char), the report is getting generated but with some junk format.

When I try opening the Excel file, I get this message:

The following is a list of repairs:

Damage to the file was so extensive that repairs were not possible. Excel attempted to recover your formulas and values, but some data may have been lost or corrupted.

Please advise.