If you need more than 16 levels then it is time you went
back to school. However, you might consider saving the
workbook as a new name like blog1.xls blog2.xls so that if
an error occurs, you can go back to a previous workbook.
I do this often but only when I think I have got it right.
When I start making drastic changes, I create a new
workbook. I rarely use undo.
-----Original Message-----
Dear Sir/Madam,

By default there are only sixteen undo level in
Microsoft Excel.But
i want to increas undo level more than sixteen. Please
guide me how can i
solve this problem? I will be very graetful to you. Thank
you.
.