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 ...

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 ...

New installations of Windows default to hiding the file extension when file names appear in Explorer windows and Open/Save dialog boxes in applications. However, this important element of the file ...