How do you hide a type of file in windows explorer?

[sithxace]

I am not looking to select a file here or there and hide them myself. The byproduct of editing certain files in video editing software is they create extra files to the files already. Is there a way I can tell windows 7, "Hey can you hide any files with the.sfk extention from here on out?

 

[kenrivers]

Hiding the files may create problems with future edits. What software are you using to edit video?
Open an elevated command prompt and navigate to your video directory type:

attrib +h *.nfo /s

Replacing .nfo with the file extension you want to hide.

This will hide the files, however if you have show hidden files turned on they will still show up.
Source: http://www.sevenforums.com/customization/81717-hide-all-certain-file-type-folder-tree.html

 

[sithxace]

great answer. Thanks very much!