List of known file header formats

In addition to filesystem reconstruction, Klennet Recovery can find files by searching for headers of known file types. This allows it to try to recover something if the filesystem is destroyed beyond any recovery. Only specific file header formats listed below are supported.

Format	Extensions	Notes
7-Zip	.7Z	7-Zip archive
ASF	.ASF	Microsoft Advanced Systems Format, audio and/or video
	.WMA
	.WMV
AU	.AU	Audacity Audio
BMP	.BMP	Bitmap Image
	.DIB	Device Independent Bitmap
CHM	.CHM	Compiled Help Manual, legacy format
FLAC	.FLAC	Free Lossless Audio Codec
FLV	.FLV	Flash Video
GIF	.GIF
JPEG	.JPG, .JPEG
MIDI	.MID	General MIDI audio
	.GM
	.AW
	.FM
MKV	.MKV	Generic MKV media container
	.WEBM	Web video
MOBI	.MOBI	Mobipocket eBook file
MP4	.MP4	Generic MP4 video
	.M4A	MP4, audio only
	.M4V	MP4, video only
	.LRV	GoPro Low Resolution Video
OLE Structured Storage	.DOC, .DOT	Microsoft Word
	.PPT, .POT	Microsoft Power Point
	.XLS, .XLT, .XLA	Microsoft Excel
	.VSD	Microsoft Visio
	.SUO	MS Visual Studio solution file
	.SNT	Windows 7 Sticky Notes
PCX	.PCX	Picture Exchange image
PDF	.PDF	Adobe PDF
PSD	.PSD	Adobe Photoshop image
PNG	.PNG
RAR	.RAR	RAR archive
RIFF	.AVI	AVI video
	.MDL	MS Flight Simulator Scenery
	.WAV	WAV audio
	.WEBP	WEBP image
RTF	.RTF	Rich Text Format
SQLite	.SQLITE	SQLite database
	.DB3
SVG	.SVG	SVG Vector Graphics
TIFF	.TIF	Tagged Image File Format (both big-endian and little-endian)
WOFF	.WOFF	Web Open Font Format
XML	.XML
ZIP	.ZIP	ZIP archive
	.DOCX	Microsoft Word
	.PPTX	Microsoft Power Point
	.XLSX	Microsoft Excel
	.ODT	Open Office document
	.ODS	Open Office spreadsheet
	.ODP	Open Office presentation
	.EPUB	Ebook (Electronic Publication)