Show File Name Extensions in Mac OS X

File extensions (like .jpg, .txt, .pdf, etc) make it easy to see what a specific file type format is, but as many Mac users notice, those file extensions are hidden by default in Mac OS X. While hi…

How to Batch Change File Extensions in Mac OS

PowerPoint file name extensions — ppt, pot, pps, pptx, potx, ppsx, thmx

How to Batch Change File Extensions in Mac OS

How to show or hide extensions for all or selected files on Mac

How to Show File Extensions in Mac OS X

These secret Finder settings will vastly improve your Mac

Show File Name Extensions in Mac OS X

Why Do Filename Extensions Show Up Inconsistently in Finder? : r/MacOS

How to open DAT files on Mac