How to show and hide filename extensions on Mac

iDownload Blog
By Jeff BenjaminMar 15, 2015, 1:03 am3.1k ptsInteresting
It’s easy to show and hide file extensions on the Mac. In fact, you can reveal file extensions for individual files, and show or hide file extensions globally. By default, OS X ships with file extensions for popular filetypes hidden. So image files with the .png extension will omit the .png at the end of the…

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