How to open any file extension
Type an extension below, or browse by category, to get clear step-by-step instructions for opening, installing or converting a file on any device.
Browse by category
Click a category to filter the full list below to just those guides.
Not sure which archive format to use? See the ZIP vs RAR vs 7Z vs ISO vs TORRENT comparison.
All file extension guides
Showing —
Android Package — how to install, run or extract it on any device.
Split APK + OBB bundle — how to install it and what's inside.
The universal archive format — browse, preview and extract it online.
WinRAR's compressed archive — open and extract it right in your browser.
Disc image, firmware, or raw data — identify what's inside before opening it.
View pages, jump around, and extract all the text — right in your browser.
Not a real format — find out what it actually is and rename it.
Python source code — view it highlighted, or actually run it in your browser.
View the photo and check whether it's leaking your GPS location — then strip it.
Find out what's really inside it — and whether it's safe to delete.
View every sheet of an Excel workbook and export to CSV — no Excel needed.
The iPhone photo format — preview, check metadata, and convert to JPG.
Validate it, pinpoint syntax errors, and explore it as a collapsible tree.
Preview it, check real technical details, and see how much smaller it is than JPG.
Mac disk image — see its real uncompressed size and partition table before opening it.
Decode a real PGP signature's algorithm, signer and date before you verify it.
See a Windows app package's real identity, capabilities and signature status before installing.
Not a real format — see what it actually does, verify one, or generate a real one.
DVD video — read its real resolution, audio tracks and duration without playing it.
Chrome's in-progress download — check whether it's actually complete before renaming.
Preview it, check hidden metadata and GPS data, and verify every chunk's checksum.
Read its real PE header — architecture, imports, exports and .NET status — safely, without running it.
Could be almost anything — identify a Registry hive, Java object, Minecraft NBT, torrent resume data and more.
AutoCAD drawing — find out exactly which AutoCAD release made it, straight from its own bytes.
Decode its real bencoded metadata — file list, trackers, and the true SHA-1 info hash.
Browse a disc image's real ISO 9660 file tree without mounting or extracting anything.
Preview it (animation included), see its real encoding and alpha channel, and convert it to JPG or PNG.
Preview it as a real table, auto-detect its true delimiter, and convert it to JSON.
iPhone photo edit file — see which edits it holds, and whether you can delete it.
DVD IFO backup or McAfee quarantine file — read titles, languages and running times.
Cue sheet for BIN images and FLAC albums — read, check, fix or create one.
AutoHotkey script — view it safely, see v1 or v2, and spot risky commands.
Chrome's save-in-progress swap file — see what's inside and recover the changes.
Android thumbnail-cache ID file — read the UUID and see if it's safe to delete.
Word document — read it without Word, see who wrote it, and spot macros or a password.
OpenDocument presentation — view the slides, text and images, or open it in PowerPoint.
Apple Pages document — see its preview, text and pictures on Windows or Android, no Mac needed.
Jupyter notebook — read the code, outputs and charts in your browser, no Python needed.
Protein structure, Visual Studio symbols or Palm ebook — find out which and view it.
HPGL plotter file — see the drawing in your browser and save it as SVG or PNG.
MDF/MDS disc image — read the track list, check the MDF and get a CUE or ISO.
AVCHD camcorder index — see which video to play and check the whole folder.
More extension guides are being added regularly.