Dark Mode
Light Mode

File Extension Database

The extended reference book with specific data regarding more than 1 000 distinct file extensions.

Text Files

.ASC ASCII Text File
.TXT Plain Text File
.PRT Printer Output File
.1ST Readme File
.DOC Microsoft Word Document (before The 2007 Version)
.CRD Guitar chord File
.OFT Outlook File Template

Audio Files

.ABC ABC Music Notation
.FLP FL Studio Project File
.MP3 MP3 Audio File
.BANK FMOD Audio Bank
.MOD Amiga Music Module File
.M4A MPEG-4 Audio File
.S3M V3 Sound File

Video Files

.SEC Samsung Security Video File
.CME Command Multimedia Evidence File
.SMI SAMI Subtitles File
.VID Generic Video File
.SWF Shockwave Flash Movie
.AV3 Arbitrator Video Surveillance File
.MKV Matroska Video File

Compressed Files

.CBR Comic Book RAR Archive
.SPD S Note File
.CBZ Comic Book Zip Archive File
.ZIP Zipped File
.DAR DAR Disk Archive File
.SDC Secure Download Cabinet
.CAR CAR Archive

Spreadsheet Files

.XLSM Microsoft Excel Open XML Macro-Enabled Spreadsheet
.PMDX PlanMaker Spreadsheet
.XLS Microsoft Excel 97 To 2003 Spreadsheet
.OTS OpenDocument Spreadsheet Template
.DEF SmartWare II Data File
.ODS OpenDocument Spreadsheet
.XL Excel Spreadsheet

eBook Files

.FB2 FictionBook 2.0 File
.AZW Amazon Kindle eBook File
.FB3 Primary FB3 File Association
.CBC Sony Portable Reader Comic E-book File
.MOBI Mobipocket eBook Format
.EPUB Open eBook File
.AZW4 Amazon Print Replica eBook

Executable Files

.PRG Program File
.COM DOS Command File
.HTA HTML Application
.AHK AutoHotkey Script
.CGI Common Gateway Interface Script
.APK Android Package File
.BAT DOS Batch File

Raster Image Files

.DJVU DjVu Image
.HIF High Efficiency Image Format
.BIF Ventana Whole Slide Image
.JXL JPEG XL Image
.ART AOL Compressed Image File
.DDS DirectDraw Surface
.ICON Icon Image File

Camera Raw Image Files

.CR3 Canon Raw 3 Image File
.RAW Raw Image Data File
.DCR Kodak Digital Camera RAW Image
.RWL Leica D-Lux 4 RAW Image
.NEF Nikon Electronic Format Camera RAW Image
.NRW Nikon Raw Image File
.CR2 Canon Digital Camera Raw Image File

Vector Image Files

.INK InkML Image
.WMZ Compressed Windows Metafile
.CDR CorelDRAW Vector Image File
.VSDX Vector Image Files
.EMF Enhanced Windows Metafile
.SVG Scalable Vector Graphics File
.MP LaTeX MetaPost File
Show More