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How to Set Word, Excel, and PowerPoint as Defaults for Files on Mac

Change a Mac’s default app for .docx, .xlsx, and .pptx files in Finder. The setting applies by file type and is separate from Office’s save format.

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To make Word, Excel, or PowerPoint open files by default on a Mac, change the file’s association in Finder: select a file, choose File > Get Info, set the app under Open with, then click Change All. Repeat for each file type you want to associate. This changes which app opens the file; it does not change its format or how Office saves new files.

Set a default app for a file type

  1. In Finder, locate a sample file of the type you want to change—for example, a .docx document.

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  2. Select the file and choose File > Get Info. You can also Control-click the file and choose Get Info.

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  3. In the Info window, expand Open with.

  4. Choose the matching app: Microsoft Word for a Word document, Microsoft Excel for a workbook, or Microsoft PowerPoint for a presentation.

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  5. Click Change All to use that app for all files of the selected type. Confirm if macOS asks.

Apple’s instructions are for changing the default across files of that type; don’t click Change All if you only want the selected file to open in a different app (Apple Support: Choose an app to open a file on Mac).

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Repeat for Word, Excel, and PowerPoint formats

The change applies to the selected file type, not every Office file. Use a representative file for each format you want to set. Common Office file extensions are .docx for Word, .xlsx for Excel, and .pptx for PowerPoint (Microsoft Support: Save a file in Office for Mac). If your files use other extensions, repeat the process with a file in each relevant type.

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Choose between a one-time opening and a default

Use Finder’s Open With command when you want to open one file in a different app without changing the default. Control-click the file and choose Open With, drag the file onto an app icon, or open the app and choose File > Open. By contrast, Change All updates the association for that file type (Apple Support).

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What this setting changes—and what it does not

The Finder association tells macOS which app to launch when you open a file of that type. It does not rename or convert existing files, and it does not change the format Office uses when saving new files. Office’s save-format preference is a separate setting documented by Microsoft (Save a file in Office for Mac).

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If the Office app is missing or the file will not open

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