How to hide all filename extensions?

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Level 1

9 points

How to hide all filename extensions?

On MacBook Air running macOS High Sierra 10.13.3, in Finder, Preferences, Advanced, "Show all filename extensions" is off. Word for Mac 16.11.1 document extensions (.doc and .docx) are hidden - great ! Excel for Mac (16.11.1) spreadsheet extensions (.xls and .xlsx) are displayed - oops !

Q1 - Why does the Finder "Show all filename extensions" work with Word and not with Excel ?

Q2 - How should one proceed to hide all the Excel filename extensions ?

Many thanks.

MacBook Air (13-inch, Early 2015), OS X Yosemite (10.10.5)

Posted on Mar 21, 2018 6:29 AM

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Answer 1

Barney-15E

Level 10

122,300 points

Mar 25, 2018 5:47 AM in response to inglese58

Show all Filename extensions is not the opposite of "hide all file name extensions."

Extensions are hidden for known types. Find will show the extension for unknown file types.

Show all filename extensions just shows the known extensions, also. Turning it off doesn't hide all extensions.

Poking around in my files, I found several odd files that were showing an extension, but shouldn't.

I edited the name to remove the extension and it went away. If I Get Info on that file, it shows the name with the extension. My guess would be some glitch in the Finder.

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How to hide all filename extensions?

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