Mac

How to Open a RAR File on a MacBook Air

Opening a RAR file on a MacBook Air uses the same tools as any Mac, with a couple of extra checks worth doing first given the Air's fixed, often smaller storage.

MacBook Air models don't include native RAR support any more than other Macs do, for the reasons covered in RAR for Mac. What's worth planning for on an Air specifically is its typically smaller SSD and lack of a fan, which makes storage headroom and sustained extraction load worth checking before you start. Broader laptop guidance is also in RAR for MacBook.

Step 1: Check available storage

1. 1Open About This MacClick the Apple menu, then About This Mac, then Storage.
2. 2Compare free space to the archive's likely uncompressed sizeIf the RAR file is several gigabytes, make sure you have that much free, plus some margin, before extracting.
3. 3Free up space or use an external drive if neededIf storage is tight, extract to an external SSD or USB drive rather than the internal disk.

Step 2: Choose an Apple silicon-compatible app

If your MacBook Air is an M-series (Apple silicon) model, look for extractors distributed as universal binaries, which both The Unarchiver and Keka are. This isn't usually something you need to check manually — current versions of both apps run natively — but if you're offered an old cached installer from somewhere other than the developer's own site, get a current version instead to avoid running old Intel-only code through Rosetta unnecessarily.

Step 3: Install and open the RAR file in Finder

1. 1Install the extractorGet The Unarchiver from the Mac App Store or Keka from its official website.
2. 2Open it once from ApplicationsThis registers it with macOS before you use it on a file.
3. 3Approve it in Privacy & Security if promptedDownloaded-outside-the-App-Store apps need a one-time approval in System Settings > Privacy & Security.
4. 4Right-click the RAR file and choose Open With, then your extractorOr simply double-click once the app is set as the default handler.
5. 5Check the extracted folderConfirm all expected files are present before deleting the original archive.

Terminal alternative

If you'd rather avoid installing a GUI app, use Homebrew: install it from brew.sh (external), then run brew install unar, cd into the folder with the RAR file, and run unar filename.rar. This works identically on Apple silicon and Intel MacBook Air models since Homebrew installs the right build automatically.

Multi-part archives

Large downloads are often split into multiple RAR volumes, named something like archive.part1.rar, archive.part2.rar, and so on, or archive.rar, archive.r00, archive.r01. Every part must be downloaded and kept in the same folder. Extracting from the first part (.part1.rar or the plain .rar file) automatically pulls in the rest — you never extract each part separately. If a part is missing, extraction will fail partway through. See multi-part RAR files for a full explanation of how this naming and process works.

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