The way 'around' it is to open multiple copies of Excel, one per worksheet. This is really annoying, but there is no other way. I have special shortcuts for my main spreadsheets, just to open them explicitly. To do this:
Make a NEW shortcut - right-click on your desktop, New, Short cut.
Browse to the excel program ( C:\Program Files (x86)\Microsoft Office\Office12\EXCEL.EXE )
Create the shortcut and name it
Edit the shortcut, and put the filename, in quotes, after the program, in the shortcut. So you end up with a 'Target' such as:
"C:\Program Files (x86)\Microsoft Office\Office12\EXCEL.EXE" "C:\Noiselezz\financial\shared financial\Sales Sheet.xlsb"
Sadly Microsoft really have little clue about how customers actually use their products. The Undo madness is one sign of this - they blindly continue with the most ridiculous method of undo known to humankind. Its not even consistent with other Office products.
Another madness is the DDE system - the best way to slow down a computer - sometimes it takes 12 seconds before the launch even starts, because of DDE. I keep on fixing the registry settings to remove the DDE rubbish, but every time MS update Office, they helpfully 'fix' them.
I have worked in MS, and seen how they think - don't waste your time expecting them to change - that was 10 years ago and they are the same today.
