What is the maximum allowed rows in a Microsoft Excel .xls or .xlsx

Is there a limit? I couldn't find one posted.

Answer

Have a look at this link** and this one (and this for 2013). A quick summary:

+-----------------+-----------+--------------+---------------------+
|                 | Max. Rows | Max. Columns | Max. Cols by letter |
+-----------------+-----------+--------------+---------------------+
| Excel 365*      | 1,048,576 | 16,384       | XFD                 |
| Excel 2013      | 1,048,576 | 16,384       | XFD                 |
| Excel 2010      | 1,048,576 | 16,384       | XFD                 |
| Excel 2007      | 1,048,576 | 16,384       | XFD                 |
| Excel 2003      | 65,536    | 256          | IV                  |
| Excel 2002 (XP) | 65,536    | 256          | IV                  |
| Excel 2000      | 65,536    | 256          | IV                  |
| Excel 97        | 65,536    | 256          | IV                  |
| Excel 95        | 16,384    | 256          | IV                  |
| Excel 5         | 16,384    | 256          | IV                  |
+-----------------+-----------+--------------+---------------------+

*Excel 365 unverified.

**This (web archive) link probably will not work with your browser, but the information is in the page source.