Excel – Excel Formula for Extracting File Types

| |

Great for logs if you need to categorize the file types.

VB
=RIGHT(A1,LEN(A1)-FIND("|",SUBSTITUTE(A1,".","|",LEN(A1)-LEN(SUBSTITUTE(A1,".","")))))
Originally Posted on December 9, 2015
Last Updated on January 24, 2026
All information on this site is shared with the intention to help. Before any source code or program is ran on a production (non-development) system it is suggested you test it and fully understand what it is doing not just what it appears it is doing. I accept no responsibility for any damage you may do with this code.