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