--Hit Ctrl+A to select all cells. From menuFormatColumnUnhide

--If FormatColumnUnhide option is disabled then the sheet is protected.
Unprotect the sheet from menu ToolsProtectionUnprotect.but cant help if you
dont have the password.

If this post helps click Yes
---------------
Jacob Skaria


"manng118" wrote:

I have received an excel file which only I can see the cell range from A to U
col.
I would like to ask how to unlock the cell range for the selection after col
U??