Finding out what a file is

Finding out what a file is I have a compressed file but I don't know what it's compressed with. The extension doesn't give any clue. How can I find out what it is?
Asked by: Guest \| Views: 179

Total answers/comments: 2

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Guest [Entry]

As an alternative to inspecting the file header by hand, you could use some utility like TrID. The link points to the cross-platform command line version; for Windows there's a GUI, too.

Guest [Entry]

"7-zip is known to open a very wide array of compressed files, you can try with it.

Also, you could check the file in some simple text editor, often the file type is written in the first letters. Maybe you could have more informations that way."