Common file format hex file header
JPEG (jpg), header: FFD8FF
PNG (PNG), the file header: 89504E47
GIF (GIF), the file header: 47,494,638
TIFF (TIF), the file header: 49492A00
Windows Bitmap (BMP) , file header: 424D
CAD (DWG), the file header: 41.43313 million
Adobe Photoshop (PSD), the file header: 38,425,053
Rich Text the Format (RTF), the file header: 7B5C727466
XML (xml), header: 3C3F786D6C
HTML (HTML), file head: 68746D6C3E
In Email [Thorough only] (EML), the file header: 44656C69766572792D646174653A
the Outlook Express (the dbx), the file header: CFAD12FEC5FD746F
the Outlook (PST), the file header: 2142444E
the MS Word / Excel (xls.or.doc), the file header: D0CF11E0
MS Access (the MDB), the file header: 5374616E64617264204A
WordPerfect (WPD), header: FF575043
Adobe Acrobat (pdf), the file header: 255044462D312E
Quicken (QDF), header: AC9EBD8F
Windows Password (pwl), header: E3828596
ZIP Archive (ZIP), the file header: 504B0304
RAR Archive (RAR), header: 52,617,221
Wave (WAV), header: 57,415,645
AVI (AVI), header: 41.56492 million
Real Audio (ram), the file header: 2E7261FD
Real Media (RM), header: 2E524D46
MPEG (MPG), the file header: 000001BA
MPEG (MPG), the file header: 000001B3
Quicktime (mov), header: 6D6F6F76
Windows Media (asf) , file header: 3026B2758E66CF11
MIDI (MID), header: 4D546864
