How to install different versions of Microsoft Office on the same computer

Case

You need to have different versions of Microsoft Office on the same machine. There are limitations when allowing co-existence of different Microsoft Office versions.

Solution

The following Microsoft article presents the considerations and limitations of having multiple Microsoft Office versions installed on the same machine: https://support.microsoft.com/en-us/office/install-and-use-different-versions-of-office-on-the-same-pc-6ebb44ce-18a3-43f9-a187-b78c513788bf .

Pay extra attention to the Microsoft product lifecycle and corresponding supportability statements for each installed version of Microsoft Office. For example if you have a very old version installed (e.g. Microsoft Office 2007) and co-existing with Office 365, you will not be receiving support or security updates for the old version.

Also pay extra attention to the bittiness (32-bit vs 64-bit) of the installed Office apps. It is a hard requirement that all co-existing versions have the same type of bittiness, i.e. all co-existing Office apps must be either 32-bit or 64-bit. No mix and match is allowed.

Source

https://support.microsoft.com/en-us/office/install-and-use-different-versions-of-office-on-the-same-pc-6ebb44ce-18a3-43f9-a187-b78c513788bf

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