Why?
You don't
have to use it!
There is a function in Mac OS that previews files so that you can kinda see what a document looks like before you open it.
With older versions of Office, this function makes Excel think someone has the file open, and subsequently opens the file as read only.
I have in the past disable this and it lasted for a long time, but the recent updates re-enabled this feature due to it being…
updated.
Well it still doesn’t work, so it needs to be disabled again.
This is the folder thats messing us up:
/System/Library/QuickLook/Office.qlgenerator
Problem is, folders in the location are protected by MacOS so you have to temporarily disable that protection so you can disable the stupid plugin.
In order to switch off the System Integrity Protection, you firstly need to boot your Mac from the built in recovery partition, to do this follow the steps below;
• Power off your Mac
• Press and hold CMD + R on your Mac keyboard
• From the Utilities menu, select Terminal
• Copy and paste or type in the following:
csrutil disable
reboot
Then enable root user, and using the terminal, copy these commands one by one:
su root (type root password)
Then from any directory, run this command
mv /System/Library/QuickLook/Office.qlgenerator /System/Library/QuickLook/Office.backup
Go back in to recovery mode as described above, and re-enable the system protection;
• Power off your Mac
• Press and hold CMD + R on your Mac keyboard
• From the Utilities menu, select Terminal
• Copy and paste or type in the following:
csrutil enable
reboot
M. Locke