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How to Hide Document File Extensions Permanently on macOS Finder
Question details
The user needs to prevent document file extensions from reappearing in Finder after editing files on a Mac.
- Product
- macOS Finder / Microsoft Word
- Device & OS
- macOS
- Scenario
- Organizing and viewing document files in the Mac Finder without visual clutter from file extensions.
- Observed behavior
- Document extensions such as .docx keep reappearing in Finder after files are opened or edited, even though the 'Hide extension' attribute is enabled and macOS is not set to show all extensions.
Before adjusting your system preferences, ensure your Mac is updated to the latest macOS version and close any active document editing applications like Microsoft Word to prevent file state conflicts.
Disable Global 'Show All Filename Extensions' Setting
Ensure the system-wide macOS setting that forces all extensions to display in Finder is turned off.
macOS has a global setting that overrides individual file visibility preferences. If this is checked, no matter what you set on a specific file, its extension will always be visible.
Click on the Finder icon in your Dock to make it the active application, then click 'Finder' in the top menu bar and select 'Settings' (or 'Preferences' on older macOS versions).
In the Finder Settings window, click on the 'Advanced' tab at the top right.
Locate the option labeled 'Show all filename extensions' and ensure the checkbox next to it is unticked.
Enable 'Hide Extension' for Individual Documents
If only specific documents are displaying their extensions, you can manually hide them using the Get Info panel.
Relaunch Finder to Refresh File Display
If extensions still appear after changing your settings, relaunching Finder forces the system to apply the new display rules.
Try WPS Office for Seamless Mac Document Editing
If your Microsoft Word files continually conflict with macOS Finder settings, consider switching to WPS Office. It provides a highly compatible, lightweight, and completely free alternative to Microsoft Office that respects your Mac's default file display settings.
- 1. Download the Installer: Visit the official WPS Office website and click the free download button specifically designed for macOS.
- 2. Install on Your Mac: Open the downloaded installation package and drag the WPS Office icon into your Applications folder.
- 3. Start Creating Documents: Launch WPS Office from your Launchpad or Applications folder, sign in, and begin editing your documents without display conflicts.
Frequently Asked Questions
Why do file extensions reappear after I edit a document on my Mac?
This usually happens because the editing application (like Microsoft Word) replaces the original file with a newly saved version during the save process. This action can strip the specific 'Hide extension' metadata tag from the file, causing macOS to display the extension again.
Can I hide extensions for all files at once on macOS?
macOS does not have a universal 'hide all extensions' button. By default, extensions are hidden unless the global 'Show all filename extensions' setting is enabled in Finder Settings. If disabled, most files will hide their extensions automatically unless they were explicitly instructed to show them.
Does changing file extension visibility affect the file's format?
No, hiding or showing a file extension in Finder only changes how the filename is displayed on your screen. It does not alter the actual file format, its contents, or its compatibility with other devices and software.
What should I do if Finder settings keep reverting on their own?
If your Finder settings are not persisting, it could indicate a corrupted preferences file in macOS. You can restart your Mac in Safe Mode, check for macOS system updates, or contact Apple Support for further assistance regarding your operating system's behavior.
