You probably opened older format Excel files. Office buttonSave as... choose Excel workbook (or macro enables workbook if you
need to), close and re-open.

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Kind regards,

Niek Otten
Microsoft MVP - Excel

"PBear" wrote in message ...
| Just got my new Office 2007 Suite of applications. One reason I wanted the
| new Office is that I work with large data files and the capability of 1
| million rows and a lot of columns will help me. Unfortunately, I just tried
| to combine 2 large worksheets that totalled more than 66,000 rows and got the
| error message that I had exceeded the row maximum. How do I "turn on" the
| larger row and column capability? Any help would be much appreciated.
| Thanks.
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| PBear