Windows 10: Is there a way to automate the change of extensions of multiple files in a folder?

TASK: Change all of many files' extensions within one folder from .xxx to .xyz

Did it manually, one-at-a-time. It was a pain, 'cuz in order to do that, had to:

• Enable display of file extensions

Then, for each file:

• 
  Double-click on file or right-click & select 'Rename'
  
  
• 
  Fight off all attempts of Windows trying to change selected focus from the extension to the filename
  
  
• 
  Change the extension text
  
  
• 
  Acknowledge the warning about changing the extension.
  

Doing those last 4 steps 80~100 times got tedious. Can this be scripted in PowerShell or another tool?

TIA

submitted by /u/OkAd134
[link] [comments]

:)

 

How to change File type on Windows 10 - File Extension Change

Windows 10 my jpegs. open with paint. Is that normal? It was a photo and opened in paint. I want to see the page of all the file extensions to see what they are opening. Somehow my friend has changed her DIP program to opening with pngs and thy won't open at all. she needs to change them back to what they were. I have looked online anf found nothing that helps...too complicated. Could I please get a step by step 1, 2, 3 etc list to help her change her program extension to the right one. Please and thank you.

 

Find Files with Multiple Extensions

In addition to the suggestions you received:

Please try this search query:

*.???.??? NOT kind:folder

But the drawback is that it doesn't list files whose extension has more than 3 characters -- e.g., .jpeg, .tiff, .jpeg.exe, etc. In that case, you can run this in addition:

*.????.??? NOT kind:folder

 

How to change File Extension on Multiple Files

Would like to select a group of files and remove a file extension of .quarartee from files that were quaranteed.

->This command, when executed at a Command Prompt inside the relevant folder, will do the trick:

for %a in (*.quarartee) do ren "%a" "%~na"

As others have pointed out, there are serious doubts about the way you spelled the extension name.