All File Signatures & Extensions
Search by extension, format name, or MIME type to jump straight to a canonical signature page with validation code and source attribution.
R
N/A
Primary Hex
52 44 58 32 0A
Windows NT Registry and Registry Undo files
N/A
Primary Hex
52 45 47 45 44 49 54
Silicon Graphics RGB Bitmap
image/x-rgb
Primary Hex
01 DA 01 01 00 03
RealMedia streaming media file
application/vnd.rn-realmedia
Primary Hex
2E 52 4D 46
Resource Interchange File Format --Windows MusicalInstrument Digital Interface file
audio/midi
Primary Hex
4D 54 68 64
RealMedia streaming media file
N/A
Primary Hex
2E 52 4D 46
RNG
text/plain
Primary Hex
54 68 69 73 20 69 73 20 54 65 58 2C
RNX
text/plain
Primary Hex
54 68 69 73 20 69 73 20 54 65 58 2C
ROFF
text/troff
Primary Hex
2E 5C 22