List of file signatures
Encyclopedia
This is a list of file signature
s, data used to identify or verify the content of a file. This is also known as a magic number and is further explained in the Magic number (programming)
article.
File signature
In computing, a file signature is data used for identify or verify the content of a file. In particular, it may refer to:* File magic number: bytes within a file used to identify the format of the file; generally a short sequence of bytes placed at the beginning of the file;* File checksum or more...
s, data used to identify or verify the content of a file. This is also known as a magic number and is further explained in the Magic number (programming)
Magic number (programming)
In computer programming, the term magic number has multiple meanings. It could refer to one or more of the following:* A constant numerical or text value used to identify a file format or protocol; for files, see List of file signatures...
article.
| Hex signature | ASCII signature |
Offset | File extension | Description |
|---|---|---|---|---|
| 00 | . | 0 | PIC PIF SEA YTR |
IBM Storyboard bitmap file Windows Program Information File Mac Stuffit Self-Extracting Archive IRIS OCR data file |
| 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |
........ ........ ........ |
11 | PDB | Palmpilot Database/Document File |
| 00 00 00 nn 66 74 79 70 33 67 70 |
....ftyp 3gp |
0 | 3GG, 3GP, 3G2 | 3rd Generation Partnership Project 3GPP (nn=0x14) and 3GPP2 (nn=0x20) multimedia files |
| 00 00 00 18 66 74 79 70 33 67 70 35 |
....ftyp 3gp5 |
0 | MP4 | MPEG-4 video files |
| 1F 9D | .. | 0 | z, tar.z | compress file (often tar zip) using Lempel-Ziv-Welch |
| 1F A0 | .. | 0 | z, tar.z | compress file (often tar zip) using LZH (Lempel-Ziv-Huffman) |
| 49 49 2A 00 4D 4D 00 2A |
II*. MM* |
0 | tif, tiff | tif file format |
| 50 4B 03 04 | PK.. | 0 | zip | zip file format ZIP (file format) Zip is a file format used for data compression and archiving. A zip file contains one or more files that have been compressed, to reduce file size, or stored as is... |
| CA FE BA BE | Êþº¾ | 0 | class | Java bytecode file |
| FF FE | .. | 0 | Byte-order mark for 16-bit Unicode text file | |
| FF FE 00 00 | .... | 0 | Byte-order mark for 32-bit Unicode text file |