I have an excel 2007 workbook with many sheets. all of a sudden, if I had cells formatted as general, all the cells were changed to a date format.

Any idea why this happened? Only thing I can think of is I imported a sheet form another workbook into the workbook in question.

All data was fine, but I had to go back and change everything back. Almost like the default type changed from general to date.

thanks,

Mike