I went to painstaking effort to gather all this information for myself and thought everyone else would find it helpful. After the multitude of failed updates to 12.0.0 and a miserable conversation with Microsoft Support for Mac who refused to respond to an invalid signature which they could fix: but wouldn't offer. Only that I should either buy Microsoft Office 2011 or 2016. Of course they want my money. There are regulations about invalid signatures imposed by the FTC and Microsoft should really be reported to the Attorney General. Here are the steps I took and I was able to get past all the. and update all the way to 12.3.6 which is as far as you can go.

I was told that Office 2008 would be 'unstable' in El Capitan OS 10.11 Hope you find this useful: Master Link for all updates: 1). Office 2008 for Mac 12.0.1 Update 2). Office 2008 for Mac Service Pack 1 (12.1.0) NOTE: Follow these steps to execute this update otherwise you will get an error message stating the signature for this update is invalid.

Go to Date & Time Preferences and uncheck set date automatically and then roll back your year to 2010. Restart your Mac. Disconnect your internet from your machine and/or turn off Wifi. Open the Installer and run it and it will install successfully. Reconnect your internet and revert the Date & Time Preferences to set Date Automatically. Restart your Mac 3). Office 2008 for Mac 12.1.1 Update 4).

Office 2008 for Mac 12.1.2 Update 5). Office 2008 for Mac 12.1.3 Update 6). Office 2008 for Mac 12.1.4 update 7). Office 2008 for Mac 12.1.5 Update 8). Office 2008 for Mac 12.1.6 Update 9). Office 2008 for Mac 12.1.7 Update 10).

Office 2008 for Mac 12.1.8 Update N/A 11). Office 2008 for Mac 12.1.9 Update 12). Office 2008 for Mac 12.2.0 Update 13). Office 2008 for Mac Service Pack 2 (12.2.0) 14).

Free vpn client for mac. Office 2008 for Mac 12.2.1 Update 15). Office 2008 for Mac 12.2.2 Update N/A 16).

Software Update Microsoft Office 2008 For Mac

Office 2008 for Mac 12.2.3 Update 17). Office 2008 for Mac 12.2.4 Update 18). Office 2008 for Mac 12.2.5 Update 20). Office 2008 for Mac 12.2.6 Update 21). Office 2008 for Mac 12.2.7 Update 22). Office 2008 for Mac 12.2.8 Update 23).

Software Update Microsoft Office 2008 For Mac Product Key

Office 2008 for Mac 12.2.9 Update 24). Office 2008 for Mac 12.3.0 Update 25). Office 2008 for Mac 12.3.1 Update 26). Office 2008 for Mac 12.3.2 Update 27).

Office 2008 for Mac 12.3.3 Update 28). Office 2008 for Mac 12.3.4 Update 29). Office 2008 for Mac 12.3.5 Update 30). Office 2008 for Mac 12.3.6 Update BTW, there will be no '12.3.7, 12.3.8, 12.3.9.' Support for Office 2008 officially ended in April of 2010 Vincent.