Archive formats A–Z
220 formats, listed alphabetically by name.
This is the same set of formats as the directory at /formats, re-sorted by name instead of by category. Every record is one name from that directory, with its extensions and category, linked to its own page. Grouping is by the first letter or digit of the displayed name.
7 2
A 22
- .apkg (Anki deck).apkg · .colpkgArchive (flashcard deck)
- .app bundle.appDirectory bundle (not a real archive)
- AAB (Android App Bundle).aabPackage (ZIP variant)
- ACE.aceArchive+compression
- ALZ.alzArchive+compression
- Apache Avro.avroRow-oriented data file
- Apache ORC.orcColumnar data file
- Apache Parquet.parquetColumnar data file
- aPACK / aPLib.aplib · .apackCompression (single file)
- APK (Alpine Linux).apkPackage (Linux distro)
- APK (Android package).apkPackage (signed ZIP)
- APK split bundle (.apks).apksArchive (Android distribution)
- AppImage.AppImagePackage (squashfs in ELF)
- AppleSingle / AppleDouble.adf · .AppleDoubleMetadata sidecar (Mac)
- APPX / MSIX.appx · .msix · .appxbundlePackage (signed ZIP)
- ar (Unix archive).a · .arArchive (no compression)
- ARC.arcArchive+compression
- ARC (SEA / System Enhancement Associates).arcArchive+compression
- ARJ.arjArchive+compression
- ASAR (Electron).asarArchive (no compression)
- Audible AAX.aax · .aaArchive (audiobook)
- AZW3 (KF8).azw3EBook (PalmDB variant)
B 11
- BA2 (Fallout 4 / 76).ba2Archive (game asset bundle)
- Base64 / MIME.b64 · .emlBinary-to-text encoding
- BIG (EA Games).bigArchive (game asset bundle)
- BIN/CUE.bin · .cueDisk image
- BinHex (.hqx).hqxBinary container (legacy Mac)
- BinHex (.hqx).hqxBinary-to-text encoding
- BorgBackupborg repositoryDeduplicating backup repository
- Brotli.brCompression (single file)
- BSA (Bethesda Softworks Archive).bsaArchive (game asset bundle)
- BZIP2.bz2 · .bzip2Compression (single file)
- bzip3.bz3Compression (single file)
C 15
- CAB (Cabinet).cabArchive+compression
- CASC (Blizzard).idx · .dataContent-addressed storage
- CB7 (Comic Book 7z).cb7Package (7z variant)
- CB7 / CBT / CBR / CBZ family.cb7 · .cbr · .cbtArchive (comic book)
- CBR (Comic Book RAR).cbrPackage (RAR variant)
- CBT (Comic Book TAR).cbtPackage (TAR variant)
- CBT comic archive.cbtArchive (comic book)
- CBZ (Comic Book ZIP).cbzPackage (ZIP variant)
- CCD (CloneCD image).ccd · .img · .subDisk image
- CDR (raw CD image).cdr · .toastDisk image
- compress (.Z).ZCompression (single file)
- cpio.cpioArchive (no compression)
- cramfs.cramfsCompressed read-only filesystem
- CRX (Chrome Extension).crxPackage (signed ZIP)
- CRX3 (Chrome Extension v3).crxPackage (signed ZIP)
D 6
E 7
F 6
G 5
I 10
- IAR (OpenSimulator inventory).iarArchive (TAR variant)
- IExpress SED.sed · .iexpressSelf-extracting (Windows)
- IMG (Raw disk image).img · .binDisk image
- initramfs.img · .cpio.gz · .cpio.xzArchive (boot ramdisk)
- Inno Setup installer.exeArchive+compression
- InstallShield .cab.cab · .hdrPackage (CAB variant)
- IPA (iOS App).ipaPackage (signed ZIP)
- IPK (OPKG / Entware).ipkPackage (ar wrapper)
- ISO (ISO 9660 image).isoDisk image
- ISZ.iszDisk image
J 2
K 4
L 12
- .lib (Microsoft / COFF).libArchive (static library)
- .love (LÖVE 2D).loveArchive (game distribution)
- .lz (lzip alias).lzCompression (single file)
- LHA (Amiga).lha · .lzhArchive+compression
- lrzip.lrzCompression (single file)
- LZ4.lz4Compression (single file)
- LZFSE.lzfseCompression (single file)
- LZH / LHA.lzh · .lhaArchive+compression
- LZIP.lzCompression (single file)
- LZMA (raw).lzmaCompression (single file)
- LZMA2.lzma · .lzma2Compression (single file)
- LZO / lzop.lzoCompression (single file)
M 12
- .msu (Microsoft Update).msuPackage (CAB wrapper)
- Mac Resource Fork.rsrcMetadata sidecar (legacy Mac)
- MacBinary (.bin).binContainer
- macOS .pkg (flat).pkgPackage (xar wrapped)
- magnet: URIIdentifier (not a file)
- mbox (mailbox).mbox · .mbxArchive (email)
- MBTiles.mbtilesData container (SQLite)
- MDF / MDS.mdf · .mdsDisk image
- MHT / MHTML.mht · .mhtmlArchive (web page)
- MOBI (Mobipocket).mobi · .prc · .azwEBook (PalmDB variant)
- MPQ (Blizzard).mpqArchive (game-specific)
- MSI (Windows Installer).msiInstaller database
N 3
O 6
- .osz (osu! beatmap).osz · .oszipArchive (rhythm game map)
- OAR (OpenSimulator archive).oarArchive (TAR variant)
- ODT / ODF.odt · .ods · .odpPackage (ZIP variant)
- OPK (OpenDingux package).opkPackage (squashfs based)
- OVA (Open Virtualization Appliance).ovaPackage (TAR variant)
- OVF / OVA.ovf · .ovaArchive (VM appliance)
P 21
- pack (.z).zCompression (single file)
- PAK (Game data).pakArchive (game-specific)
- PAK (id Software).pakArchive (game asset bundle)
- PAQ8.paq8Compression (single file)
- Partclone.img · .gzPartition image
- Partimage.000 · .001Partition image
- pbzip2 (parallel bzip2).bz2Compression (single file)
- PEA.peaArchive+compression
- pigz (parallel gzip).gzCompression (single file)
- pixz (parallel indexed xz).tpxzArchive+compression
- PIZ (encrypted ZIP).pizArchive+compression
- PK3 / PK4 (Quake engine).pk3 · .pk4Archive+compression
- PKG (macOS installer).pkgPackage (xar variant)
- pkg(8) tar.zst.txz · .tzst · .pkgPackage (BSD)
- PKGINFO (NetBSD pkgsrc / FreeBSD).tgz · .txzPackage (tar wrapper)
- PKPASS (Apple Wallet).pkpassPackage (signed ZIP)
- PMTiles.pmtilesData container
- PST (Outlook).pst · .ostArchive (email database)
- Puppy PET.petPackage (tar.gz wrapper)
- PWZ (Phoenix Wright).pwzArchive (game asset bundle)
- PYZ (Python zipapp).pyz · .pyzwPackage (ZIP variant)
Q 3
R 10
- RAR.rar · .revArchive+compression
- RAR multi-volume.part1.rar · .r00 · .r01Archive (split)
- RAR5.rarArchive+compression
- Recovery WIM (.esd).esdArchive (Windows imaging)
- resticrestic repositoryDeduplicating backup repository
- romfs.romfsFilesystem image
- RPM (Red Hat package).rpmPackage (archive of archives)
- rsyncable gzip.gzCompression (single file)
- RubyGems package.gemPackage (TAR variant)
- rzip.rzCompression (single file)
S 13
- .sb3 (Scratch project).sb3 · .sb2Archive (Scratch project)
- SFX (Self-extracting EXE).exeArchive+compression
- shar (Shell archive).sharSelf-extracting shell script
- SIS / SISX (Symbian).sis · .sisxPackage (mobile installer)
- Snap (Ubuntu package).snapPackage (squashfs)
- Snappy.sz · .snappyCompression (single file)
- Snappy framed.szCompression (single file)
- SPARK / Acorn ARC.arc · .spkArchive+compression
- sparseimage.sparseimage · .sparsebundleDisk image
- SQLite Archive.sqlar · .dbArchive (SQLite container)
- SquashFS.sqsh · .squashfs · .sfsCompressed read-only filesystem
- StuffIt.sit · .sitxArchive+compression
- SWM (Split WIM).swmArchive (Windows imaging)
T 17
- .torrent.torrentMetadata file (bencoded)
- TAR.tarArchive (no compression)
- TAR + 7z (.tar.7z).tar.7zArchive+compression
- TAR.BR.tar.br · .tbrArchive+compression
- TAR.BZ2.tar.bz2 · .tbz2 · .tbzArchive+compression
- TAR.GZ (tarball).tar.gz · .tgzArchive+compression
- TAR.LZ.tar.lz · .tlzArchive+compression
- TAR.LZ.tar.lzArchive+compression
- TAR.LZMA.tar.lzma · .tlzArchive+compression
- TAR.LZO.tar.lzo · .tzoArchive+compression
- TAR.XZ.tar.xz · .txzArchive+compression
- TAR.Z.tar.Z · .tazArchive+compression
- TAR.ZST.tar.zst · .tzstArchive+compression
- TAR.ZSTD (alias).tar.zst · .tzstArchive+compression
- TBZ2 (alias of tar.bz2).tbz2 · .tbzArchive+compression
- TGZ (alias of tar.gz).tgzArchive+compression
- TOAST (Roxio disc image).toast · .taoDisk image
U 5
V 6
W 8
- .webarchive (Safari).webarchiveArchive (web page)
- WACZ.waczArchive (web archive)
- WAD (Doom).wadArchive (game asset bundle)
- WAD (Where's All the Data).wadArchive (game-specific)
- WAR (Web Application Archive).warPackage (ZIP variant)
- WARC.warc · .warc.gzArchive (web archive)
- Wheel (Python).whlPackage (ZIP variant)
- WIM (Windows Imaging).wim · .esd · .swmFile-based image
X 5
Z 9
- zboot kernel.gz · .lz4 · .xzCompressed boot image
- ZIP.zipArchive+compression
- ZIPX.zipxArchive+compression
- zlib.zz · .zlibCompression (single file)
- ZOO.zooArchive+compression
- Zopfli (DEFLATE).gz · .zip · .pngCompression (single file)
- ZPAQ.zpaqArchive+compression
- Zstandard.zst · .zstdCompression (single file)
- Zstandard with dictionary.zstCompression (single file)
Entries per letter
- 7: 2
- A: 22
- B: 11
- C: 15
- D: 6
- E: 7
- F: 6
- G: 5
- I: 10
- J: 2
- K: 4
- L: 12
- M: 12
- N: 3
- O: 6
- P: 21
- Q: 3
- R: 10
- S: 13
- T: 17
- U: 5
- V: 6
- W: 8
- X: 5
- Z: 9
Letters with no entry: H, Y. The directory holds 220 format records, grouped here into 25 groups.
Where these entries come from
Each entry is the record shown for that format in the directory at /formats: the name, the extensions and the category, unchanged. Source: Wikipedia “List of archive formats”, Library of Congress Digital Formats registry, IANA media-type registry, 7-Zip project docs. Every link goes to the format's own page on this site.