A RAR file is a compressed archive that bundles multiple files into one smaller package

RAR stands for Roshal Archive, named after the Russian programmer who created the format in 1993. It works like a ZIP file — it squeezes files down to use less storage space and groups them together so you can move or share them as a single item. The difference is that RAR typically compresses files more tightly than ZIP does, so the resulting file takes up less disk space.

You recognize a RAR file by its .rar extension at the end of the filename. When you download a RAR file, you cannot open the files inside it directly. You first have to extract (or unpack) the archive using software designed to read RAR format. Once extracted, you get back the original files in their normal form.

RAR files are common for large downloads — software installers, video collections, game mods, and archived backups often come as RAR files because the compression saves bandwidth and download time. You might also encounter multi-part RAR archives, where one large collection is split across several .rar files (named .part1.rar, .part2.rar, and so on) to make them easier to transfer.

Key Takeaways

  • RAR files compress and bundle multiple files into one smaller package, similar to ZIP files but with tighter compression.
  • You need extraction software to open a RAR file; the most common free option on Windows is 7-Zip, and macOS users can use The Unarchiver.
  • RAR archives sometimes split into multiple parts (.part1.rar, .part2.rar) when the total size is very large, and you need all parts to extract the full contents.
  • RAR files can be password-protected, which means you will need the correct password to extract the files inside.

How to open a RAR file on Windows

The easiest free option on Windows is 7-Zip, which you can download from 7-zip.org. After you install it, right-click the RAR file and select "7-Zip" from the menu, then choose "Extract Here" to unpack the files into the same folder, or "Extract to [folder name]" to create a new folder for them.

Windows 11 added built-in RAR support through the Microsoft Store, so you may be able to right-click a RAR file and select "Extract All" without installing anything extra. However, this feature is not available on older Windows versions, and 7-Zip remains more reliable across all Windows editions.

If you prefer a graphical interface with more options, WinRAR is the official RAR software and costs money, but it includes a free trial period. Other paid options like WinZip also handle RAR files. For most people, 7-Zip does everything you need at no cost.

How to open a RAR file on Mac

macOS does not include built-in RAR support, so you need third-party software. The Unarchiver is free and available from the Mac App Store or from theunarchiver.com. After you install it, double-click the RAR file and The Unarchiver will extract it automatically into the same folder.

If you prefer more control over where files are extracted, Keka is another free option that gives you a window to choose your destination folder before extraction begins. Both tools work reliably and require no payment.

How to open a RAR file on Linux

Most Linux distributions include command-line tools for RAR extraction. Open a terminal, navigate to the folder containing the RAR file, and type unrar x filename.rar to extract all files. If the unrar command is not installed, your package manager can install it — on Ubuntu or Debian, run sudo apt install unrar.

If you prefer a graphical file manager, many Linux desktop environments (like GNOME or KDE) include built-in archive support that lets you right-click a RAR file and extract it without opening a terminal.

Multi-part RAR archives and how to handle them

When a RAR archive is split across multiple files, you will see filenames like archive.part1.rar, archive.part2.rar, and archive.part3.rar. All parts must be in the same folder. To extract, right-click the first part (.part1.rar) and choose extract — your extraction software will automatically read through all the parts and reassemble the complete contents.

If any part is missing or corrupted, extraction will fail. This is why multi-part archives are sometimes used for large downloads over unreliable connections — if one part fails to transfer, you only need to re-download that single part instead of the entire archive.

Password-protected RAR files

Some RAR files are encrypted with a password. When you try to extract one, your extraction software will prompt you to enter the password. Without the correct password, you cannot access the files inside. If you do not know the password, there is no legitimate way to open the archive — RAR encryption is designed to be secure.

If you created the archive yourself and forgot the password, you will need to ask whoever sent it to you for the correct password. Password-protected RAR files are common for sensitive documents or when sharing files over public networks.

RAR vs. ZIP: when to use each format

ZIP is older and more universal — almost every device and operating system can open ZIP files without extra software. RAR compresses files more efficiently, so the same collection of files will be noticeably smaller as a RAR archive than as a ZIP file. This makes RAR better for large downloads or when storage space is limited.

In practice, ZIP remains more common because of its universal support. RAR is typically chosen when file size matters most or when the person creating the archive specifically prefers RAR's compression ratio. For most everyday use, ZIP and RAR are interchangeable — the choice usually comes down to what the person who created the archive decided to use.

Frequently Asked Questions

Is it safe to open a RAR file from the internet?

RAR files themselves are safe — they are just containers. However, the files inside could contain malware. Before extracting, check that the RAR file came from a trusted source. After extraction, scan the unpacked files with antivirus software if you are unsure about their origin.

Can I create my own RAR files?

Yes, but it requires paid software. WinRAR (Windows and Mac) and some third-party tools let you create RAR archives, though most people use ZIP instead because it is free and more widely supported. 7-Zip can create ZIP files but not RAR files.

What if I extract a RAR file and get an error message?

The most common causes are a corrupted download, a missing part (in multi-part archives), or an incompatible extraction tool. Try downloading the RAR file again, make sure all parts are in the same folder, or try a different extraction program like 7-Zip.

Do I need to keep the RAR file after I extract it?

No. Once you extract the files, you have the original contents on your computer. You can delete the RAR file to save disk space. Keep it only if you want to archive the files again later or share the compressed version with someone else.