Thanks for pointing me in the right direction. I made a reg file script to for excel so it always opens in multiple exe instances vs the new default single instance. /X is the option for this in MS office apps. "excel.exe /X" in shortcut, and ".... excel.exe" /X "%1" in registry.
From win7:
[HKEY_CLASSES_ROOT\xls_auto_file]
@=""
"EditFlags"=hex:00,00,01,00
[HKEY_CLASSES_ROOT\xls_auto_file\shell]
[HKEY_CLASSES_ROOT\xls_auto_file\shell\open]
[HKEY_CLASSES_ROOT\xls_auto_file\shell\open\command]
@="\"C:\\Program Files (x86)\\Microsoft Office\\root\\Office16\\EXCEL.EXE\" /X \"%1\""
[HKEY_CLASSES_ROOT\xlsx_auto_file]
@=""
"EditFlags"=hex:00,00,00,00
[HKEY_CLASSES_ROOT\xlsx_auto_file\shell]
[HKEY_CLASSES_ROOT\xlsx_auto_file\shell\open]
[HKEY_CLASSES_ROOT\xlsx_auto_file\shell\open\command]
@="\"C:\\Program Files (x86)\\Microsoft Office\\root\\Office16\\EXCEL.EXE\" /X \"%1\""
1I don't have the edit permission necessary to correct it myself but I think you mean "pane", not "pain". Not trying to be a grammer nazi or anything, just trying to help. +1 – None – 2011-03-12T22:11:37.547
@Spooky Action - I have the knowledge, lack the grammar skills - I never take offence! ... I do try, but look through my other answers, you will find loads more!... But, I thought anyone can edit now :S – William Hilsum – 2011-03-12T22:22:27.020
When I tried to edit the post it complained that my edit was too short? I wasn't sure if that's a permissions issue or just how the edit option works, either way I couldn't fix it myself. – None – 2011-03-13T00:09:47.413
Ahh - I had something similar when I tried to change something on Stack Overflow... I ended up adding white space to the end in order to allow the change. Good point and I will try to open a meta question about it. – William Hilsum – 2011-03-13T00:11:40.693