We may come across this situation when we get a file with out extension or given incorrectly. But, we have options in some operating system that will search and match the program associated with the unknown file type.
I had situation recently, a file with incorrect extension. I was trying to open the file in text edition (binary mode) to identify the file type manually. But, I could not do it simple reading the file content.
Finally found a tool that does what i was trying to do manually. This is light weight tool with easy to update external data dictionary for file finger print matching data.
Utility software details:
is free for personal / non commercial use.
TrID is free for personal / non commercial use.
|Win32||TrID v2.24, 47KB ZIP – (PGP sig)|
|Linux/x86||TrID v2.24, 357KB ZIP – (PGP sig)|
|Linux/x86-64||TrID v2.24, 421KB ZIP – (PGP sig)|
|TrIDUpdate v1.00, 1KB ZIP (Python 2.7.x required)|
|TrIDDefs.TRD package, 982KB ZIP (7647 file types, 15/11/16)|