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Types of Assemblies
4os.DLL Dynamic Link Library
4os.EXE Windows Executable File
Types of Audio Files
4os.A52 Dolby Digital AC-3 Compressed Audio File
4os.AAC Advanced Audio Coding Compressed Audio File
4os.AC3 Dolby Digital AC-3 Compressed Audio File
4os.AIF Audio Interchange Format File
4os.APE Monkey's Audio Compressed Audio File
4os.AU Sun / NeXT Audio File
4os.DTS Digital Theater Systems Audio File
4os.FLAC Free Lossless Audio Codec Compressed Audio FIle
4os.M4A MPEG-4 Audio File
4os.M4P Protected AAC File
4os.MID MIDI Audio Sequence
4os.MKA Matroska Audio Stream
4os.MOD MOD Audio File
4os.MP1 MPEG-1 Audio Layer I
4os.MP2 MPEG-1 Audio Layer II
4os.MP3 MPEG-1 Audio Layer 3
4os.OGG Ogg Multimedia Container File
4os.OMA OpenMG Audio File
4os.RA RealMedia Audio File
4os.RAM RealMedia Audio File
4os.SND Sun / NeXT Audio File
4os.SPX Ogg Speex Audio File
4os.WAV Waveform Audio
4os.WMA Windows Media Audio File
4os.WV WavPack Compressed Audio File
4os.XM Extended Module Audio File
Compressed Files Compressed files or archives contain one or more files or folders that have been compressed to take up less space on disk. Compression is especially useful when transferring files over the internet as it saves bandwidth and reduces the time required to download files. The most common compressed file extensions are .ZIP (Zip Compressed Archive) and .RAR (WinRAR Compressed Archive). Types of Compressed Files
4os.7Z 7-Zip Compressed Archive
4os.ACE Ace Compressed Archive
4os.ARJ Archived by Robert Jung Compressed Archive
4os.BZ BZip Compressed Archive
4os.BZ2 BZip2 Compressed Archive
4os.CAB Cabinet Compressed Archive
4os.CPIO CPIO Compressed Archive
4os.GZ GNU Zip Compressed Archive
4os.JAR Java Archive
4os.LHA LHA Compressed Archive
4os.LZH Lempel-Ziv and Haruyasu Compressed Archive
4os.R00 WinRAR Archive Partial File
4os.RAR WinRAR Compressed Archive
4os.REV WinRAR Recovery Volume
4os.TAR TAR Archive
4os.TAZ TAR Compressed Archive
4os.TBZ BZip Compressed Tar Archive
4os.TBZ2 BZip2 Compressed Tar Archive
4os.TGZ GZip Compressed Tar Archive
4os.UU Uuencoded File
4os.UUE Uuencoded File
4os.XXE Compressed ASCII Archive
4os.Z Unix Compressed Archive
4os.ZIP Zip Compressed Archive
Types of Data Files
4os.CSV Comma Separated Value Database
4os.DAT Data File
4os.DBF dBASE Database
4os.ICL Icon Library
4os.MNL MathML Data
4os.NWP Magentic Content File
4os.ODB ODF Database
4os.ODF ODF Formula
4os.PART Partially Downloaded File
4os.SMF StarMath Data
4os.SXM OpenOffice.org 1.0 Formula
4os.TMP Temporary File
4os.TXT Comma Separated Value Database
4os.XLS Comma Separated Value Database
Disk Images Disk Images contain all of the data from a disk. A disk can be a CD, DVD, thumb drive, hard drive, memory card, or any other type of media. Common types of disk images are .ISO CD images and .BIN disk images. Types of Disk Images
4os.B5I B5I Disk Image
4os.B5T B5T Disk Image
4os.BIN Binary Disk Image
4os.BWI BlinkWrite Disk Image
4os.BWT BlinkWrite Disk Image
4os.C2D C2D Disk Image
4os.CCD CCD Disk Image
4os.CD CD Disk Image
4os.CDI CD Image File
4os.CDR Raw CD Audio File
4os.CIF CIF Disk Image
4os.DAO DAO Disk Image
4os.DI Raw CD Audio File
4os.DMG Mac OS X Disk Image
4os.DVD DVD Disk Image
4os.FCD FCD Disk Image
4os.FLP FLP Disk Image
4os.GCD GCD Disk Image
4os.GCM GameCube Image File
4os.GI Global Disk Image
4os.IBB IBB Disk Image
4os.IBP IBP Disk Image
4os.IBQ IsoBuster Disk Image
4os.IMG Disk Image File
4os.ISO ISO 9660 Disk Image
4os.LST DVD Image List
4os.MDF MDF Disk Image
4os.MDS MDS CD/DVD Image
4os.NRG Nero Disk Image
4os.P01 P01 Disk Image
4os.PDI InstantCopy Disc Image
4os.PXI PXI Disk Image
4os.TAO TAO Disk Image
4os.UDI Universal Disk Image
4os.VC4 VC4 Disk Image
4os.VCD Farstone Virtual Drive
4os.VDI Virtuo CD Manager Disk Image
Types of Documents
4os.ABW AbiWord Document
4os.CHM Compiled Help File
4os.DJV DjVu Document
4os.DJVU DjVu Document
4os.DOC Corel WordPerfect Document
4os.DOC Microsoft Word Document
4os.DOCM Microsoft Word XML Document
4os.DOCX Microsoft Open XML Word Document
4os.GAN GanttProject File
4os.HWP Hangul Word Processor Document
4os.LOG Log File
4os.ODM ODF Master Document
4os.ODT ODF Text Document
4os.OTH
4os.PDB Palm AportisDoc Document
4os.PDF Portable Document Format Document
4os.PSW Pocket Word Document
4os.RTF Rich Text Format Document
4os.SDW StarWriter Document
4os.SGL StarWriter Master Document
4os.STW OpenOffice.org 1.0/value/4os Template
4os.SXG OpenOffice.org 1.0 Master Document
4os.SXW OpenOffice.org 1.0 Text Document
4os.TXT Text Document
4os.UOF Unified Office Format Document
4os.UOT Unified Office Format Document
4os.WPD WordPerfect Document
4os.WPS Microsoft Works Document
4os.XML DocBook Document
Types of Images
4os.!S ZX Spectrum Hobetta Image
4os.$C ZX Spectrum Hobetta Image
4os.$S ZX Spectrum Hobetta Image
4os.001 Ricoh Fax Image
4os.001 SmartFax Image
4os.16 LSS16 Image
4os.2BP Pocket PC Bitmap Image
4os.2D Amapi Image
4os.301 Brooktrout 301 Image
4os.3FR Hasselblad 3F RAW Image
4os.411 Mavica Image
4os.4BIT GoDot Image
4os.4BT GoDot Image
4os.73I TI Bitmap Image
4os.82I TI Bitmap Image
4os.83I TI Bitmap Image
4os.85I TI Bitmap Image
4os.86I TI Bitmap Image
4os.89I TI Bitmap Image
4os.92I TI Bitmap Image
4os.A64 Artist 64 Image
4os.ABS Optocat Image
4os.ACE Aces200 Image
4os.ACR Dicom Image
4os.AFX Auto F/X Image
4os.ALIAS Alias Image File
4os.ALS Alias Image File
4os.AMI Amica Paint Image
4os.ANI Animated Mouse Cursor Image
4os.ANI Windows Animated Cursor
4os.ANV AirNav Image
4os.APX Photopaint Image
4os.ARF ARF Image
4os.ARN Astronomical Research Network Image
4os.ART Art Director Image
4os.ART Artisan Image
4os.ART Advanced Art Studio Image
4os.ART Pfs Art Publisher Image
4os.ATK Andrew Toolkit raster object Image
4os.ATT AT&T Group 4 Image
4os.AVS Stardent AVS X Image
4os.B&W ImageLab Image
4os.B16 PCO Image
4os.B3D B3D (images) Image
4os.BFL BFLI Image
4os.BFLI BFLI Image
4os.BFX Bfx Bitware Image
4os.BGA OS/2 Bitmap Image
4os.BIE JBIG Image
4os.BIF byLight Image
4os.BIG Cartes Michelin Image
4os.BLD MegaPaint Image
4os.BLK Amiga IFF Image
4os.BM X11 Bitmap Image
4os.BMC Embroidery Image
4os.BMF BMF Image
4os.BMP Windows Bitmap Image
4os.BMP Alpha Microsystems BMP Image
4os.BMS Playback Bitmap Sequence Image
4os.BOB Bob Raytracer Image
4os.BPX Truevision Targa Image
4os.BRK Brooktrout 301 Image
4os.BRT Brooktrout 301 Image
4os.BS Printfox/Pagefox Image
4os.BTN JustButtons animated bitmap Image
4os.BUM Poser Bump Image
4os.BW Silicon Graphics RGB Image
4os.B_W ImageLab Image
4os.C4 Edmics Image
4os.CAL CALS Raster Image
4os.CALS CALS Raster Image
4os.CAM Casio QV-10/100 Camera Image
4os.CAN Canon Navigator Fax Image
4os.CAR NeoBook Cartoon Image
4os.CAT Photomatrix Image
4os.CBM Fuzzy bitmap Image
4os.CDR Corel Draw Bitmap (preview) Image
4os.CDU CDU Paint Image
4os.CE Computer Eyes, Digital Vision Image
4os.CE1 ComputerEyes Raw Image
4os.CE2 ComputerEyes Raw Image
4os.CEL Kiss Cel Image
4os.CFT Optigraphics Image
4os.CIN Kodak Cineon Image
4os.CIT Intergraph Format Image
4os.CLO Cloe Ray-Tracer Image
4os.CLOE Cloe Ray-Tracer Image
4os.CLP Windows Clipboard Image
4os.CLP PC Paint / Pictor Page Image
4os.CLP GoDot Image
4os.CMP Discorp CMP Image
4os.CMT Chinon ES-1000 digital camera Image
4os.CMU CMU Window Manager Image
4os.CMX Corel Metafile Exchange (preview) Image
4os.CP8 CP8 256 Gray Scale Image
4os.CPI Calamus Image
4os.CPT CorelDraw Photopaint Image
4os.CR2 Raw Image File
4os.CRG Calamus Image
4os.CRW Raw Image File
4os.CT Iris CT Image
4os.CUR Mouse Cursor Image
4os.CURSOR Sun Icon/Cursor
4os.CUT Dr Halo Image
4os.CVP Portrait Image
4os.DAT SPOT Image
4os.DCM Dicom Image
4os.DCR Raw Image File
4os.DCX Multipage PCX Image
4os.DCX Zsoft Multi-page Paintbrush Image
4os.DCX Zsoft Publisher's Paintbrush Image
4os.DD Doodle C64 Image
4os.DDS Microsoft DirectDraw Surface
4os.DIA Dia UML Diagram
4os.DIB Windows Bitmap Image
4os.DIS DKB Ray-Tracer Image
4os.DNG Raw Image File
4os.DOO Doodle Atari Image
4os.DPX DPX Image
4os.DRZ Draz Paint Image
4os.DWF AutoCAD Drawing
4os.DWG AutoCAD Drawing
4os.DXF AutoCAD Drawing eXchange Format Drawing
4os.DXF AutoCAD Drawing
4os.ECC Ecchi Image
4os.EI Electric Image
4os.EIDI Electric Image
4os.EIF Eroiica Image
4os.EMF Enhanced Metafile Format Image
4os.EPA Award Bios Logo
4os.EPS Encapsulated PostScript Image
4os.ESM Enhance Simplex Image
4os.FAC Usenix FaceServer Image
4os.FACE Usenix FaceServer Image
4os.FAX Fax Group 3 Image
4os.FBM Fuzzy bitmap Image
4os.FFF Maggi Hairstyles & Cosmetics Image
4os.FI Flash Image
4os.FIG XFig Drawing
4os.FIT FIT Image
4os.FITS Flexible Image Transport System Image
4os.FLC Autodesk Animator Image
4os.FLI Autodesk Animator Image
4os.FPG DIV Game Studio Multi Map Image
4os.FRE Male Normal CT Image
4os.FRM Megalux Frame
4os.FRM PhotoFrame
4os.FSH EA Sports FSH Image
4os.FSY PhotoFantasy Image
4os.FTS Flexible Image Transport System Image
4os.FXO WinFAX Image
4os.FXS WinFAX Image
4os.G3 Fax Group 3 Image
4os.G3N Imaging Fax Image
4os.G4 Access Image
4os.GAF Total Annihilation Image
4os.GB Printfox/Pagefox Image
4os.GBR Gimp Brush Image
4os.GEM Digital Research (GEM Paint) Image
4os.GEO GeoPaint Image
4os.GG Koala Paint (Compressed) Image
4os.GIF Graphics Interchange Format Image
4os.GIFF CompuServe GIF Image
4os.GM Autologic Image
4os.GM2 Autologic Image
4os.GM4 Autologic Image
4os.GRB HP-48/49 GROB Image
4os.GREY Raw Image
4os.GRO HP-48/49 GROB Image
4os.GRY Raw Image
4os.HDR Apollo HDRU Image
4os.HDR ArcInfo Binary Image
4os.HDRU Apollo HDRU Image
4os.HED Hi-Eddi Image
4os.HF HF Image
4os.HIR Hires C64 Image
4os.HPGL HP Graphics Language Image
4os.HPI Hemera Photo Image
4os.HR TRS 80 Image
4os.HRU HRU Image
4os.HRZ Slow Scan Television Image
4os.HTA Hemera Thumbs Image
4os.I17 Pixel Power Collage Image
4os.I18 Pixel Power Collage Image
4os.IB7 Pixel Power Collage Image
4os.ICA IOCA Image
4os.ICB Image Capture Board Image
4os.ICN RIPTerm Image
4os.ICNS Macintosh Icon File
4os.ICO Windows Icon File
4os.ICO Sun Icon/Cursor
4os.ICON Sun Icon/Cursor
4os.IDC Core IDC Image
4os.IF9 Pixel Power Collage Image
4os.IFF Explore (TDI) & Maya Image
4os.IFF Sun TAAC Image
4os.IFF Amiga IFF Image
4os.IIM Inshape Image
4os.IIMG Interleaf Image
4os.ILBM Deluxe Paint, Electronic Arts Image
4os.IM AIM Grey Scale Image
4os.IM5 IM5 (Visilog) Image
4os.IMA AIM Grey Scale Image
4os.IMG ADEX Image
4os.IMG Digital Research (GEM Paint) Image
4os.IMG Imaging Technology Image
4os.IMG Img Software Set Image
4os.IMG Microtek Eyestar Image
4os.IMG Planetary Data System Image
4os.IMG Radiance Image
4os.IMG Sharp GPB Image
4os.IMG Starbase Image
4os.IMG Vivid Ray-Tracer Image
4os.IMG Autocad CAD-Camera Image
4os.IMG Datacopy Image
4os.IMG Vicar Image
4os.IMT IMNET Image
4os.INFO Amiga icon
4os.IOCA IOCA Image
4os.IPG Mindjongg Format Image
4os.IPH InterPaint (Hires) Image
4os.IPT InterPaint (Multicolor) Image
4os.IRIS Iris graphic Image
4os.IRIS Silicon Graphics RGB Image
4os.ISH Image Speeder Image
4os.ISM Image System (Multicolor) Image
4os.ISS ISS Image
4os.ITG Intergraph Format Image
4os.IVB Truevision Targa Image
4os.J JPEG / JFIF Image
4os.J2K LuraWave JPEG-2000 Format Image
4os.J6I Ricoh Digital Camera Image
4os.JBF PaintShopPro Browser Cache File
4os.JBG JBIG Image
4os.JBIG JBIG Image
4os.JFIF Joint Photographic Experts Group Image
4os.JIF Joint Photographic Experts Group Image
4os.JIF Jeff's Image Format Image
4os.JJ Doodle C64 (Compressed) Image
4os.JLS JPEG-LS Image
4os.JNG Jpeg Network Graphics Image
4os.JP2 LuraWave JPEG-2000 Format Image
4os.JPC LuraWave JPEG-2000 Code Stream Image
4os.JPE Joint Photographic Experts Group Image
4os.JPEG Joint Photographic Experts Group Image
4os.JPG Joint Photographic Experts Group Image
4os.JPS Stereo Image
4os.JPX LuraWave JPEG-2000 Format Image
4os.JTF Hayes JTFax Image
4os.K25 Kodak DC25 Camera Image
4os.KDC Raw Image File
4os.KFX Kofax Group 4 Image
4os.KOA Koala Paint Image
4os.KPS IBM Kips Image
4os.KQP Konica Camera File
4os.LBM Deluxe Paint, Electronic Arts Image
4os.LDA LaserData Image
4os.LFF LucasFilm Format Image
4os.LIF Homeworld Texture
4os.LVP LView Pro Image
4os.LWI Light Work Image
4os.M8 Heretic II MipMap Image
4os.MAC Mac Paint Image
4os.MACP Mac Paint Image
4os.MAG MAGIchan Graphics Image
4os.MAP DIV Game Studio Map Image
4os.MAP Fenix Map Image
4os.MBFAVS Stardent AVS X Image
4os.MBFS Stardent AVS X Image
4os.MBM Psion Serie 5 Bitmap Image
4os.MDI Microsoft Document Imaging Image
4os.MDL Half-Life Model Image
4os.MGR MGR bitmap Image
4os.MIF Image Magick file
4os.MIFF Image Magick file
4os.MIL Micro Illustrator Uncompressed Image
4os.MNG Multiple Network Graphics Image
4os.MPNT Mac Paint Image
4os.MRF Marks Russel File
4os.MRW Minolta Raw Image File
4os.MSK PaintShopPro Mask
4os.MSP Microsoft Paint Image
4os.MTV MTV Ray-Tracer Image
4os.MTX Maw-Ware Textures Image
4os.NCD CoverDesigner Image
4os.NCR NCR Image
4os.NCT CoverDesigner Template
4os.NEF Raw Image File
4os.NEO Neochrome (ST & TT) Image
4os.NGG Nokia Group Graphics Image
4os.NITF National Imagery Transmission Image
4os.NLM Nokia Logo File
4os.NOL Nokia Operator Logo
4os.NPM Neopaint Mask
4os.OAZ OAZ Fax Image
4os.OCP Advanced Art Studio Image
4os.OFX Olicom Fax Image
4os.OIL Open Image Library Format Image
4os.ORF Raw Image File
4os.OTB Nokia OTA Image
4os.P64 Picasso 64 Image
4os.P7 XV Visual Schnauzer Image
4os.PAC Stad Image
4os.PAINT Mac Paint Image
4os.PAN SmoothMove Pan Viewer Image
4os.PAT Gimp Pattern
4os.PAT Corel Draw Pattern (preview) Image
4os.PBM Portable Bitmap Image
4os.PBM Portable Bitmap Image
4os.PBT Micro Dynamics MARS Image
4os.PC1 Degas & Degas Elite Image
4os.PC2 Degas & Degas Elite Image
4os.PC3 Degas & Degas Elite Image
4os.PCC Zsoft Publisher's Paintbrush Image
4os.PCD Kodak Photo CD Image
4os.PCL Page Control Language Image
4os.PCT Mac Pict Image
4os.PCT NIST ihdr Image
4os.PCX Zsoft Paintbrush Image
4os.PD Male MRI Image
4os.PDB MonkeyCard Image
4os.PDB MonkeyLogo
4os.PDB Palm Pilot Image
4os.PDB Photo Deluxe Image
4os.PDB TealPaint Image
4os.PDD Photo Deluxe Image
4os.PDN Paint.NET Image
4os.PDS Planetary Data System Image
4os.PDX Mayura Draw Image
4os.PE4 Ulead Texture
4os.PEF Raw Image File
4os.PFR PaintShopPro Frame
4os.PG Printfox/Pagefox Image
4os.PGC Portfolio Graphics Compressed Image
4os.PGF Portfolio Graphics Image
4os.PGM Portable Graymap Image
4os.PHP Adobe PhotoParade Image
4os.PI Blazing Paddles Image
4os.PI1 Degas & Degas Elite Image
4os.PI2 Degas & Degas Elite Image
4os.PI3 Degas & Degas Elite Image
4os.PI4 Degas & Degas Elite Image
4os.PI5 Degas & Degas Elite Image
4os.PI6 Degas & Degas Elite Image
4os.PIC Macintosh Quickdraw/Pict Image
4os.PIC PC Paint / Pictor Page Image
4os.PIC Pixar Image
4os.PIC Radiance Image
4os.PIC Rayshade Image
4os.PIC Advanced Art Studio Image
4os.PIC Bio-Rad confocal Image
4os.PIC Psion Serie 3 Bitmap Image
4os.PIC Softimage
4os.PIC Stad Image
4os.PIC WinMIPS Image
4os.PICIO Pixar Image
4os.PICT Macintosh Quickdraw/Pict Image
4os.PICT2 Macintosh Quickdraw/Pict Image
4os.PIG Ricoh IS30 Image
4os.PIX Alias Image File
4os.PIX Truevision Targa Image
4os.PIX Vort Image
4os.PIX ESM Software Pix Image
4os.PIX PABX Image
4os.PIXAR Pixar Image
4os.PLT HP Graphics Language Image
4os.PM X11 Pixmap Image
4os.PM PM Image
4os.PMG Paint Magic Image
4os.PMP Sony DSC-F1 Cyber-shot Image
4os.PNG Portable Network Graphic Image
4os.PNM Portable Image
4os.PNT Mac Paint Image
4os.PNTG Mac Paint Image
4os.PP4 Micrografx Picture Publisher 4.0 Image
4os.PP5 Micrografx Picture Publisher 5.0 Image
4os.PPM Portable Pixelmap Image
4os.PPP Punk Productions Picture
4os.PR Sun Icon/Cursor
4os.PRC Picture Gear Pocket Image
4os.PRF Polychrome Recursive Format Image
4os.PRI Prisms Image
4os.PSD Adobe Photoshop Image
4os.PSE IBM Printer Page Segment Image
4os.PSF PhotoStudio File
4os.PSP PaintShopPro Image
4os.PST Ulead Pattern
4os.PWP Seattle Film Works multi-image
4os.PXA Pixia Image
4os.PXA Pegs Image
4os.PXB Pixibox Image
4os.PXR Pixar Image
4os.PXS Pegs Image
4os.PZL Puzzle Image
4os.PZP MGI Photosuite Project Image
4os.Q0 Q0 Image
4os.QDV Qdv (Random Dot Software) Image
4os.QRT Qrt Ray-Tracer Image
4os.QTI QuickTime Image Format Image
4os.QTIF QuickTime Image Format Image
4os.QTL YUV 16Bits Image
4os.QTL YUV 4:4:4 Image
4os.QTL YUV 4:1:1 Image
4os.QTL YUV 4:2:2 Image
4os.RAD Radiance Image
4os.RAF Raw Image File
4os.RAS Sun Raster Image
4os.RAST Sun Rasterfile
4os.RAW Raw Image File
4os.RGB Q0 Image
4os.RGB Silicon Graphics RGB Image
4os.RGBA Silicon Graphics RGB Image
4os.RGH ZZ Rough Image
4os.RIX ColoRIX Image
4os.RL4 Windows Bitmap Image
4os.RL8 Windows Bitmap Image
4os.RLA Wavefront Raster Image
4os.RLB Wavefront Raster Image
4os.RLC Image Systems RLC2 Graphic Image
4os.RLE ADEX Image
4os.RLE Intergraph Format Image
4os.RLE Utah raster Image
4os.RLE Windows Bitmap Image
4os.RP Rainbow Painter Image
4os.RPBM Portable Bitmap Image
4os.RPGM Portable Greyscale Image
4os.RPM RunPaint (Multicolor) Image
4os.RPNM Portable Image
4os.RPPM Portable Image
4os.RS Sun Rasterfile
4os.RSB Red Storm Image
4os.SAR Saracen Paint Image
4os.SC2 Msx 2 Screen Image
4os.SCI SciFax Image
4os.SCI ColoRIX Image
4os.SCR Sun Rasterfile
4os.SCR ZX Spectrum Standard Screen Image
4os.SCT SciTex Continuous Tone Image
4os.SCX ColoRIX Image
4os.SD0 Dali Raw Image
4os.SD1 Dali Raw Image
4os.SD2 Dali Raw Image
4os.SDG Star Office Gallery Image
4os.SDT SmartDraw 6 Template
4os.SEQ Stad Image
4os.SFW Seattle Film Works Image
4os.SGF StarWriter Graphics Format Image
4os.SGI Silicon Graphics RGB Image
4os.SGV StarDraw Image
4os.SI Softimage
4os.SIM Aurora Image
4os.SIR BYU SIR Image
4os.SIR Solitaire Image Recorder Image
4os.SJ1 Sega SJ-1 DIGIO Image
4os.SKF Autodesk SKETCH thumbnail Image
4os.SKN Skantek Image
4os.SKP Autodesk SketchUp component Image
4os.SMP Xionics SMP Image
4os.SNA ZX Spectrum Snapshot Image
4os.SPC Spectrum 512 (Compressed) Image
4os.SPS Spectrum 512 (Smooshed) Image
4os.SPU Spectrum 512 Image
4os.SR Sun Rasterfile
4os.SR2 Sony Raw Image File
4os.SRF Sony Raw Image File
4os.SSI SriSun Image
4os.SSP Axialis Screensaver Image
4os.ST4 SBIG CCD camera ST-X Image
4os.ST4 SBIG CCD camera ST-4 Image
4os.ST5 SBIG CCD camera ST-X Image
4os.ST6 SBIG CCD camera ST-X Image
4os.ST7 SBIG CCD camera ST-X Image
4os.ST8 SBIG CCD camera ST-X Image
4os.STM PhotoStudio Stamp Image
4os.STW Neopaint Stamp Image
4os.STX SBIG CCD camera ST-X Image
4os.SUL Gfa Raytrace Image
4os.SUN Sun Rasterfile
4os.SUNIFF Sun TAAC Image
4os.SVG Scalable Vector Graphics Image
4os.SVGZ GZip Compressed Scalable Vector Graphics Image
4os.SYN Synthetic Universe Image
4os.SYNU Synthetic Universe Image
4os.T1 Male MRI Image
4os.T2 Male MRI Image
4os.TAAC Sun TAAC Image
4os.TAP Oric TAP Image
4os.TARGA Truevision Targa Image
4os.TDI Explore (TDI) & Maya Image
4os.TDIM Digital F/X Image
4os.TEX PaintShopPro Texture
4os.TG4 TG4 Image
4os.TGA Truevision Targa Image
4os.THB KinuPix Skin Image
4os.TIF Tagged Image File Format Image
4os.TIFF Tagged Image File Format Image
4os.TIL Buttonz & Tilez texture
4os.TILE Eclipse Image
4os.TIM Sony Playstation TIM Image
4os.TIM TIFF Revision 6 Image
4os.TN1 Tiny Image
4os.TN2 Tiny Image
4os.TN3 Tiny Image
4os.TNL Thumbnail Image
4os.TNY Tiny Image
4os.TTF Optigraphics Tiled Image
4os.TUB PaintShopPro Picture Tube Image
4os.UPI Ulead PhotoImpact Image
4os.URT Utah raster Image
4os.UYVY YUV 16Bits Image
4os.VDA Video Display Adapter Image
4os.VFF Sun TAAC Image
4os.VGA Windows Bitmap Image
4os.VI Jovian VI Image
4os.VIC Vicar Image
4os.VICAR Vicar Image
4os.VID Vidcom 64 Image
4os.VIF Khoros Visualization Image file
4os.VIF Verity Image
4os.VIFF Khoros Visualization Image file
4os.VIT VITec Image
4os.VOB Vue d'esprit Image
4os.VPB Quantel VPB Image
4os.VST Vista Image
4os.WAD WAD (Half Life) Image
4os.WAL Quake Texture
4os.WAP Wireless Bitmap Image
4os.WBC WebShots Image
4os.WBM Wireless Bitmap Image
4os.WBMP Wireless Bitmap Image
4os.WBZ WebShots Image
4os.WFX WinFAX Image
4os.WPG WordPerfect Graphics Image
4os.WRL VRML2 Image
4os.X Stardent AVS X Image
4os.X11 X Windows System Dump Image
4os.X3F Raw Image File
4os.XAR Xara Image
4os.XBM X Bitmap Image
4os.XCF Gimp Bitmap Image
4os.XIF Xerox DIFF Image
4os.XIM Ximage
4os.XP0 SecretPhotos Puzzle Image
4os.XPM X PixMap Image
4os.XV Khoros Visualization Image file
4os.XWD X Windows System Dump Image
4os.YUV YUV 16Bits Image
4os.YUV YUV 4:1:1 Image
4os.YUV YUV 4:2:2 Image
4os.YUV YUV 4:4:4 Image
4os.ZBR Zoner Zebra Metafile
4os.ZMF Zoner Callisto Metafile
4os.[B] Amica Paint Image
Types of Metadata Files
4os.ABT AbiWord Template
4os.ASA ASP Configuration File
4os.ASX Advanced Stream Redirector
4os.B4S Winamp 3+ Playlist
4os.BTSEARCH BitTorrent Search File
4os.BUP DVD Information File
4os.CGM Computer Graphics Metafile
4os.CKZ CKZ Checksum File
4os.CODE eXtensible Stylesheet Language Transformation File
4os.CONFIG Configuration File
4os.CRC Cyclic Redundancy Check Checksum File
4os.CUE Cue Sheet
4os.DOT Microsoft Word Template
4os.DOTM Microsoft Word XML Template
4os.DOTX Microsoft Open XML Word Template
4os.EMF Enhanced Metafile
4os.IFO DVD Information File
4os.INI Initialization File
4os.M3U MP3 Uniform Resource Locator
4os.MANIFEST Windows Assembly Manifest File
4os.MD5 MD5 Checksum File
4os.MET OS/2 Metafile
4os.MP TeX Metapost Macro
4os.NFO Downloaded Program Information
4os.OTP ODF Presentation Template
4os.OTS ODF Spreadsheet Template
4os.OTT ODF Text Document Template
4os.PAR Parity Checksum File
4os.PLS Playlist
4os.POT Microsoft PowerPoint Template
4os.POTM Microsoft Open XML Macro-Enabled PowerPoint Template
4os.POTX Microsoft Open XML PowerPoint Template
4os.SFV SFV Checksum File
4os.SHAPE Dia Shape File
4os.SRT DVD Subtitles File
4os.STC OpenOffice.org 1.0 Spreadsheet Template
4os.STI OpenOffice.org 1.0 Presentation Template
4os.STW OpenOffice.org 1.0 Text Document Template
4os.SVM StarView MetaFile
4os.TEX TeX PSTricks Macro
4os.TORRENT BitTorrent Tracker File
4os.VLC VLC Media Player Data
4os.VOR StarWriter Template
4os.VOR StarCalc Template
4os.VOR StarImpress Template
4os.WMF Windows Metafile
4os.XLM Microsoft Excel Macro
4os.XLT Microsoft Excel Template
4os.XLTM Microsoft Excel XML Template
4os.XLTX Microsoft Excel XML Template
4os.XLW Microsoft Excel Workspace
4os.XSPF XML Shareable Playlist Format
Types of Plugins
4os.XPI Firefox Plugin
Types of Presentations
4os.ODG ODF Drawing Presentation
4os.ODP ODF Presentation
4os.PPS Microsoft PowerPoint Show
4os.PPSX Microsoft Open XML PowerPoint Show
4os.PPT Microsoft PowerPoint Presentation
4os.PPTM Microsoft Open XML Macro-Enabled PowerPoint Presentation
4os.PPTX Microsoft Open XML PowerPoint Presentation
4os.SDA StarDraw Drawing
4os.SDD StarDraw Drawing
4os.SDD StarImpress Presentation
4os.SXD Microsoft OpenOffice.org 1.0 Drawing
4os.SXI OpenOffice.org 1.0 Presentation
4os.UOF Unified Office Format Presentation
4os.UOP Unified Office Format Presentation
Types of Shell Scripts
4os.AU3 AutoIt Script
4os.BAT Windows Batch File
4os.BSH Bash Shell Script
4os.SH Unix Shell Script
Types of Source Code
4os.ASAX ASP.Net Open XML Configuration File
4os.ASP Active Server Page Source File
4os.ASPX ASP.Net Open XML Source File
4os.C C Source File
4os.CGI Perl Source File
4os.CPP C++ Source File
4os.CS C# Source File
4os.CSPROJ C# Project File
4os.CSS Cascading Style Sheets Source File
4os.CXX C++ Source File
4os.H C Header File
4os.HPP C++ Header File
4os.HTA
4os.HTM Hypertext Markup Language Source File
4os/value/4os Hypertext Markup Language Source File
4os.JAVA JAVA Source File
4os.JS JavaScript Source File
4os.JSP JavaServer Pages Source File
4os.MHT
4os./value/4os
4os.PHP PHP Source File
4os.PHP3 PHP3 Source File
4os.PL Perl Source File
4os.PM Perl Module
4os.RC C++ Resource Compiler Script
4os./value/4os Server Side Includes/value/4os File
4os.SQL SQL Database Query
4os.STM Server Side Includes/value/4os File
4os.VB Visual Basic .Net Source File
4os.VBPROJ Visual Basic .Net Project File
4os.VBS Visual Basic Script
4os.XAML Extensible Application Markup Language
4os.XML Extensible Markup Language
Types of Spreadsheets
4os.123 IBM Lotus 1-2-3 Spreadsheet
4os.DIF Data Interchange Format Document
4os.ODS ODF Spreadsheet
4os.PXL Pocket Excel Spreadsheet
4os.SDC StarCalc Spreadsheet
4os.SLK SYLK Spreadsheet
4os.SXC OpenOffice.org 1.0 Spreadsheet
4os.UOF Unified Office Format Spreadsheet
4os.UOS Unified Office Format Spreadsheet
4os.WB2 Quattro Pro Spreadsheet
4os.WK1 Lotus 1-2-3 Spreadsheet
4os.WKS Lotus 1-2-3 Spreadsheet
4os.XLC Microsoft Excel Chart
4os.XLS Microsoft Excel Spreadsheet
4os.XLSB Microsoft Excel Binary Spreadsheet
4os.XLSM Microsoft Open XML Macro-Enabled Excel Spreadsheet
4os.XLSX Microsoft Open XML Excel Spreadsheet
Types of Videos
4os.3G2 3G Mobile Phone Video
4os.3GP 3G Mobile Phone Video
4os.ASF Advanced Systems Format Video
4os.AVI Audio Video Interleave
4os.BIK Bink Video
4os.BIN Binary DVD Video
4os.DAT VCD Video
4os.DIVX DivX Movie
4os.DV Digital Video
4os.FLV Flash Video
4os.GXF General eXchange Format
4os.M1V MPEG-1 Video
4os.M2TS MPEG-2 Transport Stream Videos
4os.M2V MPEG-2 Video
4os.M4V MPEG-4 Video File
4os.MKV Matroska Video Stream
4os.MOV Apple QuickTime Movie
4os.MP4 MPEG-4 Part 14 Multimedia Container
4os.MPEG MPEG Video
4os.MPEG1 MPEG-1 Video
4os.MPEG2 MPEG-2 Video
4os.MPEG4 MPEG-4 Video
4os.MPG MPEG Video
4os.MTS AVCHD Video File
4os.MXF Material eXchange Format
4os.OGM Ogg Multimedia Container File
4os.RM RealMedia Streaming Media File
4os.RMVB RealMedia Variable Bitrate Media File
4os.SWF Adobe Flash Movie
4os.TS DVD Video
4os.VOB DVD Video Object
4os.WMV Windows Media Video
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