File error

[Al]

Using PC v. 9 and Excel 2003.
When saving a Balance Sheet by Fund (level 6) as an Excel file, I get the following error message every time.
"File error: data may have been lost"
There are seven fund columns, one total column, one account title and one account number column.

Also, the fund titles are offset by three or four columns (they're too far to the right, so I cut and paste them to where they belong).

I'd like to know why I'm getting the error message.

Al
First United Church
Salmon Arm, BC