I'm using Excel 2007 . . . I know it's old, but so am I and I've seen no valid reason for going to the expense of upgrading.
I have a small workbook with a only a couple of (about 125x20) worksheets. Suddenly, while making minor updates on "sheet1", I discovered that "sheet2" wasn't available anymore. In fact, no worksheet tabs were visible at all (at the bottom), not even "sheet1". I can only see the data on "sheet1". I googled, but nothing seemed to work. Some offered options that wouldn't even allow me to change them.
After several tries, without knowing changing anything, I was finally able to create a new empty workbook which showed tabs for sheets 1,2,3. Several tries had opened empty workbooks, but without any sheet tabs. I managed to copy the accessible (sheet1) data from my (still open) "problem" workbook into sheet1 of the newly created workbook. I manually named the sheet tab and had to review & manually adjust all the column/row heights and widths. Auto isn't applicable here.
None of my original backups (some several weeks old) opened showing sheet tabs & therefore I wasn't able to copy sheet2 data into the new workbook as I had done with sheet1 data.
Before this problem, the default parameters were in effect for all my workbooks, even my 1-sheet workbooks show empty sheet2 & sheet3.
1. What could I have done that caused the hiding of the worksheet tabs?
2. How can I unhide hidden sheets? I have other workbooks that contain many worksheets. I'm actually afraid to open them, for fear of losing valuable data.
Thanks for your help.
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