What Is the File Extension H13?

H13 is an unknown or unassigned file extension.The H13 file extension is an unknown or unassigned file extension. This means the extension is not actively tied to any known program, but that doesn't rule out its existence.

File extensions are the letters and numbers that follow the period in a file name. They are not governed by any central authority, which leaves their assignment up to the program's developer. This is why it's impossible to say authoritatively that a file extension doesn't exist. It's only possible to say that it hasn't been entered into a file extension database. It's possible H13 is a file extension being used by an independent programmer. Another possibility is the file has been renamed, possibly through a batch script change or user error. You may find clues about the file type associated with H13 by examining the file with a text editor. Open the file using a basic text editor program, such as Notepad, and look for clues in the data to give you evidence as to the type of file.