.RAR File Extension
Proprietary compressed archive format created by Eugene Roshal with recovery records.
application/vnd.rar
52 61 72 21 1A 07 00 (Rar!.. RAR 4) or 52 61 72 21 1A 07 01 00 (RAR 5)
Format Architecture & Technical Specifications
RAR is a proprietary compressed archive format developed by Eugene Roshal. It features multi-volume splitting, solid archive compression, AES-256 encryption, and built-in error recovery records.
How to Open .RAR Files
1 Extract with 7-Zip
Download free 7-Zip, right click .rar file > 7-Zip > Extract Here.
2 Unpack on Mac
Install free The Unarchiver app to open RAR files on macOS.
Compatible Software Programs
WinRAR
windows • Commercial
7-Zip
windows, mac, linux • Free
The Unarchiver
mac • Free
ZArchiver
android • Free
Security Considerations & Verification
May contain untrusted binaries inside compressed archive.
- Use WinRAR "Keep Broken Files" option during extraction to save undamaged files from bad RAR volumes.
Frequently Asked Questions
What is a .RAR file?
A .RAR file is a Roshal Archive Compressed File associated with Archives. Proprietary compressed archive format created by Eugene Roshal with recovery records.
How do I open a .RAR file on Windows or Mac?
You can open .RAR files using WinRAR, 7-Zip, The Unarchiver, ZArchiver. If you do not have native software installed, you can use AnyFileX's free File Identifier or convert .RAR to a standard format in your browser.
Is a .RAR file safe to open?
This format carries a safety rating of Medium Risk. May contain untrusted binaries inside compressed archive.
Can I convert a .RAR file to other formats?
Yes! .RAR can be converted to formats such as .ZIP directly in your web browser.
What should I do if a .RAR file is corrupted or won't open?
If your .RAR file displays an invalid header or signature error, check its magic bytes hex header (52 61 72 21 1A 07 00 (Rar!.. RAR 4) or 52 61 72 21 1A 07 01 00 (RAR 5)) using AnyFileX's Magic Byte Detector or follow our step-by-step file repair guide.