title | description | ms.date | ms.localizationpriority |
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Sideload Office Add-ins on Mac for testing |
Test your Office Add-in on Mac by sideloading. |
02/12/2025 |
medium |
To see how your add-in will run on Office on Mac, you can sideload your add-in's manifest. This action won't enable you to set breakpoints and debug your add-in's code while it's running, but you can see how it behaves and verify that the UI is usable and rendering appropriately.
[!INCLUDE Unified manifest note about platform sideloading restrictions]
Note
To sideload an Outlook add-in, see Sideload Outlook add-ins for testing.
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A Mac running OS X v10.10 "Yosemite" or later with Office on Mac installed.
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Word on Mac Version 15.18 (160109).
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Excel on Mac Version 15.19 (160206).
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PowerPoint on Mac Version 15.24 (160614).
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The manifest .xml file for the add-in you want to test.
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Use Finder to sideload the manifest file. Open Finder and then enter Cmd+Shift+G to open the Go to folder dialog.
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Enter one of the following filepaths, based on the application you want to use for sideloading. If the
wef
folder doesn't exist on your computer, create it.-
For Word:
/Users/<username>/Library/Containers/com.microsoft.Word/Data/Documents/wef
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For Excel:
/Users/<username>/Library/Containers/com.microsoft.Excel/Data/Documents/wef
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For PowerPoint:
/Users/<username>/Library/Containers/com.microsoft.Powerpoint/Data/Documents/wef
[!NOTE] The remaining steps describe how to sideload a Word add-in.
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Copy your add-in's manifest file to this
wef
folder. -
Open Word (or restart Word if it's already running), then open a document.
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Select Home > Add-ins, and then select your add-in from the menu.
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Verify that your add-in is displayed in Word.
You can remove a previously sideloaded add-in by clearing the Office cache on your computer. Details on how to clear the cache for each platform and application can be found in the article Clear the Office cache.