Every format we open.
Browse every supported file format. Pick a category or search by extension.
Documents & Books
Office files, PDFs, ebooks, comics.
28 formats- PDF.pdf
Portable Document Format — fixed-layout documents.
Open - DOCX.docx
Microsoft Word OOXML document.
Open - XLSX.xlsx
Microsoft Excel OOXML spreadsheet.
Open - PPTX.pptx
PowerPoint OOXML presentation.
Open - RTF.rtf
Rich Text Format document.
Open - ODT.odt
OpenDocument Text (LibreOffice Writer).
Open - ODS.ods
OpenDocument Spreadsheet (LibreOffice Calc).
Open - ODP.odp
OpenDocument Presentation (LibreOffice Impress).
Open - EPUB.epub
Standard reflowable ebook format.
Open - MOBI.mobi
Mobipocket ebook (older Kindle).
Open - AZW3.azw3
Kindle Format 8 ebook.
Open - FB2.fb2
FictionBook XML-based ebook.
Open - DjVu.djvu
Scanned-document format (academic, archives).
Open - CBZ.cbz
Comic Book ZIP — images in a zip.
Open - CBR.cbr
Comic Book RAR — images in a RAR.
Open - XLS.xls
Legacy Excel binary spreadsheet (BIFF, pre-2007).
Open - DOC.doc
Legacy Microsoft Word binary (pre-2007).
Open - PPT.ppt
Legacy PowerPoint binary deck (pre-2007).
Open - WPD.wpd
Corel WordPerfect document.
Open - HWP.hwp
Hangul Word Processor (Korean standard).
Open - HWPX.hwpx
Modern XML-based Hangul format.
Open - Pages.pages
Apple iWork word processor.
Open - Numbers.numbers
Apple iWork spreadsheet.
Open - Keynote.key
Apple iWork presentation.
Open - VSDX.vsdx
Microsoft Visio diagrams (OOXML-based).
Open - MPP.mpp
Microsoft Project plan file.
Open - XPS / OXPS.xps
Microsoft fixed-layout document (PDF alternative).
Open - CHM.chm
Compiled HTML Help (Windows manuals).
Open
Data & Config
Structured data, configs, databases.
16 formats- JSON.json
JavaScript Object Notation — structured data.
Open - CSV.csv
Comma-Separated Values tabular data.
Open - TSV.tsv
Tab-Separated Values tabular data.
Open - XML.xml
Extensible Markup Language.
Open - YAML.yaml
Human-readable config/data format.
Open - TOML.toml
Tom's Obvious Minimal Language config.
Open - INI.ini
Classic key=value config files.
Open - SQLite.db
.db / .sqlite database file.
Open - DBF.dbf
dBase / Foxpro / Shapefile attribute table.
Open - Parquet.parquet
Apache columnar data format.
Open - Arrow / Feather.arrow
Apache Arrow columnar format.
Open - HAR.har
HTTP Archive — browser network traces.
Open - MHTML.mhtml
Saved web page in MIME multipart.
Open - WARC.warc
Web ARChive standard (Wayback, Common Crawl).
Open - GGUF.gguf
LLM weights container (llama.cpp ecosystem).
Open - Safetensors.safetensors
ML tensor storage, safe to mmap.
Open
Images
Raster, vector, and exotic image formats.
28 formats- SVG.svg
Scalable Vector Graphics.
Open - PNG.png
Lossless raster image.
Open - JPEG.jpg
Lossy photo image.
Open - GIF.gif
Animated/static raster image.
Open - WebP.webp
Google's modern lossy/lossless image.
Open - AVIF.avif
AV1-based modern image format.
Open - BMP.bmp
Windows uncompressed bitmap.
Open - ICO.ico
Windows multi-resolution icon.
Open - TIFF.tif
Tagged Image File Format (multi-page, high-bit).
Open - HEIC.heic
Apple's HEVC-encoded photos from iPhones.
Open - HEIF.heif
High Efficiency Image Format container.
Open - PSD.psd
Adobe Photoshop layered document.
Open - AI.ai
Adobe Illustrator (modern files are PDF-compatible).
Open - TGA.tga
Truevision Targa raster image.
Open - Camera RAW.cr2
Canon, Nikon, Sony, Fuji, and other camera RAW photos.
Open - DNG.dng
Adobe Digital Negative — open camera RAW.
Open - JPEG XL.jxl
JPEG XL — next-gen image format.
Open - JPEG 2000.jp2
JPEG 2000 wavelet image (medical, archival, cinema).
Open - PCX.pcx
Legacy PC Paintbrush image.
Open - Netpbm (PPM/PGM/PBM).ppm
Plain-text pixel formats from Unix.
Open - DDS.dds
DirectDraw Surface — game texture format.
Open - KTX / KTX2.ktx
Khronos texture container for GPU.
Open - EXR.exr
OpenEXR high-dynamic-range image (VFX).
Open - HDR (Radiance).hdr
Radiance HDR environment maps.
Open - ICNS.icns
Apple icon resource.
Open - WMF / EMF.wmf
Windows Metafile vector graphics — structural preview.
Open - XCF (GIMP).xcf
GIMP native layered format — structural preview with layer tree.
Open - JPEG XR.jxr
Microsoft JPEG XR / HD Photo — structural preview.
Open
Audio
Waveforms, metadata, MIDI.
8 formats- Audio (WAV/FLAC/OGG).wav
Audio with waveform/spectrogram view.
Open - MP3 (tags).mp3
ID3 metadata + native audio playback.
Open - MIDI.mid
Musical Instrument Digital Interface.
Open - CUE.cue
Audio cuesheet (track marks for a single file).
Open - MOD / IT / XM / S3M.mod
Tracker modules — header and sample listing.
Open - AIFF.aif
Audio Interchange File Format.
Open - MusicXML.musicxml
Sheet music interchange.
Open - Guitar Pro.gp
Guitar tablature with playback.
Open
Video
Native browser playback.
6 formats3D Models
Meshes, scenes, scans.
19 formats- STL.stl
Stereolithography 3D mesh (3D printing).
Open - OBJ.obj
Wavefront 3D model (mesh + materials).
Open - FBX.fbx
Autodesk Filmbox 3D (animation/rigs).
Open - glTF.gltf
GL Transmission Format — web 3D standard.
Open - GLB.glb
Binary glTF (single file).
Open - Collada (DAE).dae
Collada XML-based 3D interchange.
Open - PLY.ply
Polygon File Format (Stanford scans).
Open - 3DS.3ds
Legacy 3D Studio Max format.
Open - 3MF.3mf
Modern 3D Manufacturing Format.
Open - VRML / WRL.wrl
Virtual Reality Modeling Language (older 3D web).
Open - X3D.x3d
Successor to VRML, XML 3D scenes.
Open - USDZ.usdz
Universal Scene Description (Apple AR).
Open - 3DM (Rhino).3dm
Rhinoceros 3D model.
Open - AMF.amf
Additive Manufacturing Format (XML + zip).
Open - PCD.pcd
Point Cloud Library's native format.
Open - LDR / MPD.ldr
LDraw — Lego digital models.
Open - VOX (MagicaVoxel).vox
MagicaVoxel voxel models.
Open - BVH.bvh
BioVision Hierarchy — motion capture.
Open - SKP (SketchUp).skp
SketchUp model — header inspection only.
Open
CAD & PCB
Engineering drawings and BIM.
13 formats- STEP / STP.step
ISO 10303 CAD interchange (parametric solids).
Open - IGES / IGS.iges
Initial Graphics Exchange Spec (CAD).
Open - BREP.brep
Boundary Representation CAD geometry.
Open - DWG.dwg
AutoCAD native drawing.
Open - DXF.dxf
AutoCAD Drawing Exchange Format.
Open - Gerber.gbr
PCB fabrication files (RS-274X) with stackup compositing.
Open - Excellon.drl
PCB drill/route files with tool table and hit map.
Open - ODB++.tgz
PCB design exchange archive (Valor / Siemens).
Open - IFC.ifc
Industry Foundation Classes — BIM models.
Open - JT.jt
Siemens JT — engineering 3D interchange.
Open - SAT (ACIS).sat
ACIS solid model.
Open - Parasolid (X_T / X_B).x_t
Siemens Parasolid kernel format.
Open - DGN.dgn
Bentley MicroStation drawing.
Open
Archives
ZIP, TAR, ISO and friends.
8 formats- ZIP.zip
Universal archive format.
Open - TAR.tar
Unix tape archive.
Open - GZ.gz
Gzip compression.
Open - 7-Zip.7z
7-Zip archive (high compression).
Open - RAR.rar
Roshal Archive (proprietary, decode-only).
Open - ISO.iso
Optical disc image (ISO 9660).
Open - APK / IPA.apk
Android / iOS app packages.
Open - JAR / WAR.jar
Java archives (ZIP with manifests).
Open
Code & Markup
Text, Markdown, HTML, logs.
13 formats- Plain Text.txt
Plain text — the universal format.
Open - Log.log
Plain text logs (often huge, needs virtualization).
Open - Markdown.md
Markdown — lightweight markup.
Open - HTML.html
Web pages — render in sandboxed iframe.
Open - IPYNB (Jupyter).ipynb
Jupyter Notebook (JSON with cells).
Open - R Markdown.rmd
R Markdown with code chunks.
Open - LaTeX.tex
LaTeX source with math rendering.
Open - BibTeX.bib
BibTeX bibliography database.
Open - AsciiDoc.adoc
AsciiDoc structured text.
Open - reStructuredText.rst
reStructuredText (Python docs).
Open - Org-mode.org
Emacs Org-mode notes/outlines.
Open - DIFF / PATCH.diff
Unified diff output (Git, patches).
Open - Mermaid (MMD).mmd
Mermaid diagram source.
Open
Geospatial
Maps, vector and raster GIS.
17 formats- KML.kml
Google Earth XML geodata.
Open - KMZ.kmz
Zipped KML bundle.
Open - GeoJSON.geojson
Geographic JSON features.
Open - GPX.gpx
GPS Exchange — tracks, routes, waypoints.
Open - Shapefile (SHP).shp
ESRI Shapefile (geospatial vector).
Open - GeoTIFF.tif
Georeferenced raster imagery.
Open - LAS.las
LIDAR point cloud.
Open - LAZ.laz
Compressed LIDAR point cloud.
Open - COPC.copc.laz
Cloud Optimized Point Cloud.
Open - E57.e57
Point cloud + imagery container.
Open - PMTiles.pmtiles
Single-file pyramid of map tiles.
Open - MBTiles.mbtiles
SQLite-packaged map tiles.
Open - MVT / PBF.mvt
Mapbox Vector Tiles (protobuf).
Open - TopoJSON.topojson
Topology-preserving GeoJSON extension.
Open - WKT / WKB.wkt
Well-Known Text/Binary geometry encoding.
Open - GeoPackage (GPKG).gpkg
OGC GeoPackage (SQLite-based geo container).
Open - NMEA.nmea
GPS sentence stream from receivers.
Open
Email & Calendars
Messages, contacts, events.
5 formatsScientific
Medical imaging, arrays, datasets.
21 formats- DICOM.dcm
Medical imaging (CT/MRI/X-ray) DCM files.
Open - NIfTI.nii
Neuroimaging volumetric data (.nii).
Open - NRRD.nrrd
Nearly Raw Raster Data for medical/scientific volumes.
Open - HDF5.h5
Hierarchical scientific data.
Open - NetCDF.nc
Climate/atmospheric scientific arrays.
Open - MAT.mat
MATLAB data file — v5 and v7.3.
Open - NumPy NPY / NPZ.npy
NumPy array dumps.
Open - FITS.fits
Astronomical image and table format.
Open - PDB (protein).pdb
Protein Data Bank molecular structures.
Open - mmCIF / CIF.cif
Macromolecular Crystallographic Information File.
Open - MOL / SDF.mol
Small-molecule structure (chemistry).
Open - MOL2.mol2
Tripos Sybyl molecule format.
Open - XYZ (chem).xyz
Plain-text atomic coordinates.
Open - SMILES.smi
Molecule as a string.
Open - FASTA.fasta
Bio sequence (DNA/protein) plain text.
Open - FASTQ.fastq
Sequencing reads with quality scores.
Open - GenBank.gb
NCBI sequence + annotation flat file.
Open - GFF / GFF3.gff
Generic Feature Format (gene annotations).
Open - VCF (Variant Call).vcf
Genomic variants — distinct from vCard contacts.
Open - BAM / SAM.bam
Sequence alignment maps.
Open - BED / BigWig.bed
Genomic track formats.
Open
Fonts
Glyphs, metadata, hinting.
4 formatsSpecialty
Subtitles, captures, raw bytes.
19 formats- SRT.srt
SubRip subtitle file.
Open - WebVTT.vtt
WebVTT — HTML5 native subtitles.
Open - ASS / SSA.ass
Advanced SubStation Alpha styled subtitles.
Open - PLIST.plist
Apple Property List (XML or binary).
Open - Torrent.torrent
BitTorrent metainfo (bencoded).
Open - PCAP / PCAPNG.pcap
Wireshark packet captures.
Open - Hex / Binary.bin
Raw bytes view of any file.
Open - M3U / M3U8.m3u
Audio/video playlist (HLS for M3U8).
Open - Lottie.lottie
JSON-based After Effects animations.
Open - draw.io.drawio
draw.io / diagrams.net XML.
Open - SUB / IDX (VobSub).sub
DVD VobSub bitmap subtitles — IDX inspection.
Open - TTML / DFXP.ttml
Timed Text Markup (broadcast captions).
Open - LRC.lrc
Synced song lyrics with timestamps.
Open - SWF (Flash).swf
Adobe Flash — runs again via emulator.
Open - ELF.elf
Linux/Unix executable & object files.
Open - PE (EXE/DLL).exe
Windows executables — header & sections.
Open - WebAssembly.wasm
WebAssembly binary — disassemble to WAT.
Open - LNK.lnk
Windows shortcut metadata.
Open - PEM / X.509.pem
TLS certificates and keys.
Open