These File extensions vary from the type of file that a user is trying to run. If you add ‘File name extensions’ item to the Windows 11/10 context menu, then you will be able to show or hide ...

The file extensions are written at the end of a file name after a dot (.). For example, a PDF file has a .pdf extension, a text file has a .txt file extension, etc. You can view the file extension ...

By default, Version 8 filenames are appended with an eight-character filename extension. For example, a Version 8 filename extension for a data set on the UNIX, OpenVMS, OS/2, and Windows hosts is ...

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 ...