I use passwords to protect worksheets (leaving cells unprotected in which data is to be entered) and so I do not forget the password, I write the password in the last row of the last column (IV65536) then I protect the sheet.

When the sheet is protected I then cannot use the cusor keys or rather the up/down/left/right arrow keys do not move the cell focus to the next cell of the unprotected cells. I can mouse click on the cell but that is a pain and I should be able to use the cursor keys. If I then delete the data in the last column/row I am still stuck with the problem. Is this an undocumented feature of excel??????

On other spreadsheets I have protected without using the last column/row the cursor keys work fine.