1How to view file name extensions for all files on a Mac 2How to view file name extensions for a individual file on a Mac The default setting for Mac OS is to not display a file's extension. For those ...

Free software "Windows Explorer filename extension column" to add extensions column to Explorer Ideal for those who think that "You should be able to rearrange them in the order of this extension" ...

A file extension, or file name extension, is the letters immediately shown after the last period in a file name. For example, the file extension.txt has an extension of .txt. This extension allows the ...

¹ refers to Version 7 and later OS/390 UNIX System Services Directory. ² refers to Version 7 and later OS/2 and Windows short filename extensions. For details about conditions under which short ...