Have you looked at Conditional Formatting?
ScottO

" Inserting an option button in Word"
soft.com wrote in message
...
| I'm using Excel 2003 and there I have inherited a spreadsheet where the
| background colour on the worksheets with content are grey for the entire
| worksheet. I have tried all obvious routes to remove it, fill colour,
| autoformat, sheet background option, any macros that might be causing it
but
| it appears none of these are the case. The fill colour won't change. I',
sure
| this is explaining the very large file size. Any help appreciated.