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

.APK file

Android Package — how to install, run or extract it on any device.

.XAPK file

Split APK + OBB bundle — how to install it and what's inside.

.ZIP file

The universal archive format — browse, preview and extract it online.

.RAR file

WinRAR's compressed archive — open and extract it right in your browser.

.BIN file

Disc image, firmware, or raw data — identify what's inside before opening it.

.PDF file

View pages, jump around, and extract all the text — right in your browser.

.DOWNLOAD file

Not a real format — find out what it actually is and rename it.

.PY file

Python source code — view it highlighted, or actually run it in your browser.

.JPG file

View the photo and check whether it's leaking your GPS location — then strip it.

.TMP file

Find out what's really inside it — and whether it's safe to delete.

.XLSX file

View every sheet of an Excel workbook and export to CSV — no Excel needed.

.HEIC file

The iPhone photo format — preview, check metadata, and convert to JPG.

.JSON file

Validate it, pinpoint syntax errors, and explore it as a collapsible tree.

.AVIF file

Preview it, check real technical details, and see how much smaller it is than JPG.

.DMG file

Mac disk image — see its real uncompressed size and partition table before opening it.

.SIG file

Decode a real PGP signature's algorithm, signer and date before you verify it.

.MSIX file

See a Windows app package's real identity, capabilities and signature status before installing.

.nomedia file

Not a real format — see what it actually does, verify one, or generate a real one.

.VOB file

DVD video — read its real resolution, audio tracks and duration without playing it.

.crdownload file

Chrome's in-progress download — check whether it's actually complete before renaming.

.PNG file

Preview it, check hidden metadata and GPS data, and verify every chunk's checksum.

.DLL file

Read its real PE header — architecture, imports, exports and .NET status — safely, without running it.

.DAT file

Could be almost anything — identify a Registry hive, Java object, Minecraft NBT, torrent resume data and more.

.DWG file

AutoCAD drawing — find out exactly which AutoCAD release made it, straight from its own bytes.

.TORRENT file

Decode its real bencoded metadata — file list, trackers, and the true SHA-1 info hash.

.ISO file

Browse a disc image's real ISO 9660 file tree without mounting or extracting anything.

.WEBP file

Preview it (animation included), see its real encoding and alpha channel, and convert it to JPG or PNG.

.CSV file

Preview it as a real table, auto-detect its true delimiter, and convert it to JSON.

More extension guides are being added regularly.