The App Store Updates page only informs you of updates available for the OS you are currently running.

Jun 10, 2016 Excel crashes on Mac OS X Yosemite version 10.10.5 Excele version 15.22 (160506). Office 2016 for. 2016 3:38:41 AM 6/10/2016 5:37:05 AM Welcome to the Microsoft.
Outlook 2016 v15.19.1 crashing when user click on calendar tab. Outlook I working ok but when user click on calendar tab outlook stopped responding and crashed. Outlook 2011 is working fine. Created new outlook identity, Removed Office 2016 and installed from MS portal, Deleted outlook preferences file but still same issue.
Microsoft Office 2016 - Unmistakably Office, designed for Mac. The new versions of Word, Excel, PowerPoint, Outlook and OneNote provide the best of both worlds for Mac users - the familiar Office experience paired with the best of Mac. If you already use Office on a PC or iPad, you will find yourself right at home in Office 2016 for Mac.

As you are running an older system then you are probably up to date on that system.

Microsoft Word For Mac Os 10.10.5 Update The preview version of this suite will come fully packed with Word, Excel, PowerPoint, OneNote and Outlook to every desktop OS user. Sure, it doesn’t have the final version, and there’re sure to be some updates, but this is the chance to get your paws on Microsoft Office for free while you still can.

If you want to install a newer OS that is called an Upgrade.

The model and year of your Mac will determine which macOS you can upgrade to,

please use Safari to access the following links,

Before upgrading make a full back up of your Mac.

Check that third party apps you use have updates available for the new OS.

Check that your printers/ scanners etc have updated drivers and software available for the new OS.

Connect your mac to your router via cable rather than rely on WiFi.

Do not use your mac while it is downloading

and do not use any other devices that share the same internet connection.

If you are considering upgrading to Catalina be warned that it does not support 32bit apps.

Microsoft Office 2016 Yosemite 10.10.5

Your Mac is probably running 32bit apps and these will need to be updated to 64bit apps,

some updates may be free, some may be paid. Use this app to discover which apps you have

are 32bit, https://www.stclairsoft.com/Go64/. Once the list has been created you can then

contact the developers of the apps to see if they provide 64bit updates.

May 16, 2020 11:20 PM

Last year I had trouble getting old versions of Office 2011 to become authorized (server issues) after performing a clean install for several clients.

You can download and install the free open source office suite LibreOffice. Sometimes you will encounter formatting issues when opening documents made with Office, but these issues can be minimized if you use a document template to keep the document formatting contained at the beginning of the document (makes it much easier to fix formatting issues).

If you need MS Office, then you could buy a subscription to Office 365 which is web based, but you will need to use a third party browser such as Firefox, Google Chrome, or Vivaldi since the Yosemite version of Safari is outdated.

If your Mac can support a later version of macOS, then you could update to the latest supported version and by an actual copy of Office instead of the Office 365 subscription.

Microsoft Office 2016 Yosemite 10.10.5 Full

Edit: I should add there is no way to know how long these third party browsers will continue support of Yosemite. I really don't expect them to support Yosemite for much longer.

Mar 25, 2020 4:38 PM