RAR is one of the most popular compressed archive formats, second only to ZIP in widespread use. Created by Eugene Roshal (RAR stands for Roshal ARchive), the format is known for strong compression ratios, reliable error recovery, and robust password protection. RAR files are everywhere — downloaded software, game mods, e-book collections, media bundles, and file-sharing communities all favor the format.
AnExplorer opens RAR archives from internal storage, SD cards, USB OTG drives, network shares, and cloud folders. It handles both classic RAR (version 4 and earlier) and the modern RAR5 format without needing any additional apps.
Quick Answer
Open AnExplorer, find the .rar file, and tap it to browse inside. Long-press the archive and choose Extract if you want the files in a normal folder.
What Is a RAR File?
A RAR file is a compressed archive that bundles one or more files and folders into a single container while reducing total file size through compression. Unlike ZIP which compresses each file independently, RAR can use "solid" compression where files are compressed together as a continuous data stream, yielding significantly smaller archives for collections of similar files.
RAR archives support:
- High compression — typically 10-30% smaller than equivalent ZIP archives
- Password protection — AES-128 (RAR4) or AES-256 (RAR5) encryption
- File name encryption — hides even the list of contained files
- Recovery records — allows partial repair of damaged archives
- Multi-volume splitting — break large archives into smaller parts for easier transfer
- Solid archives — compress similar files together for better ratios
Where You Encounter RAR Files
RAR files appear frequently in these scenarios:
- Software downloads — programs, utilities, and drivers from developer sites
- Game modifications — mods, texture packs, and custom content
- E-book collections — bundled books from library sites
- Media downloads — music albums, photo collections, video packs
- Forum attachments — file-sharing communities prefer RAR for its compression
- Backup archives — created by WinRAR on desktop for transfer to mobile
How to Open RAR Files with AnExplorer
Browse Without Extracting
- Launch AnExplorer from your app drawer
- Navigate to the folder containing your
.rarfile - Tap the RAR file — the archive viewer opens
- Browse the contents like a normal folder
- Tap individual files to preview them (images, documents, text files)
Extract the Entire Archive
- Navigate to the
.rarfile in AnExplorer - Long-press the file to select it
- Tap the menu (⋮) → Extract
- Choose a destination folder (current folder is the default)
- Tap OK — extraction begins
- If the archive is password-protected, enter the password when prompted
Extract a Single File
- Tap the
.rarfile to browse inside - Navigate to the specific file you want
- Long-press that file
- Tap Extract and choose where to save it
Technical Details
RAR Format Versions
| Feature | RAR 1-3 | RAR 4 (Classic) | RAR 5 (Modern) |
|---|---|---|---|
| Compression | Good | Very good | Best |
| Encryption | Proprietary | AES-128 | AES-256 |
| Max file size | 2 GB | 8.5 EB | 8.5 EB |
| Unicode filenames | Limited | Partial | Full |
| Dictionary size | Up to 4 MB | Up to 4 MB | Up to 1 GB |
| Recovery records | Basic | Good | Improved |
| Checksum | CRC32 | CRC32 | CRC32 + BLAKE2 |
Compression Algorithms
RAR uses proprietary compression algorithms that achieve excellent ratios:
- Standard compression — balanced speed and ratio
- PPMD — optimal for text-heavy content (documents, source code)
- Solid mode — processes files as one continuous stream for best compression on similar files
Multi-Part RAR Archives
Large RAR archives are often split into multiple volumes for easier distribution. You will see them named in two common patterns:
Old naming style:
archive.rar(first volume)archive.r00,archive.r01,archive.r02...
New naming style:
archive.part1.rar,archive.part2.rar,archive.part3.rar...
To extract multi-part archives:
- Ensure all parts are in the same folder
- Tap the first part (
.raror.part1.rar) - AnExplorer automatically reads subsequent parts in sequence
- Extract as normal — all volumes combine into the original files
Password-Protected RAR Files
When you tap a password-protected RAR archive:
- AnExplorer detects encryption and displays a password prompt
- Enter the password exactly (case-sensitive)
- If file names are also encrypted, you cannot even see the contents list until the password is entered
- After entering the correct password, browse or extract as normal
RAR vs ZIP vs 7Z
| Feature | RAR | ZIP | 7Z |
|---|---|---|---|
| Compression ratio | Very good | Good | Excellent |
| Speed (extract) | Fast | Fastest | Moderate |
| Password encryption | AES-256 | AES-256 (ZIP AES) | AES-256 |
| Recovery records | ✅ | ❌ | ❌ |
| Solid archives | ✅ | ❌ | ✅ |
| Multi-volume | ✅ | ❌ | ❌ |
| Open format | ❌ (proprietary) | ✅ | ✅ |
| Create on Android | ❌ (license required) | ✅ | ✅ |
RAR offers the best balance of compression, reliability, and features. ZIP wins on universal compatibility. 7Z achieves the highest compression ratios but lacks recovery records.
Use Cases
- Receiving compressed files — colleagues, clients, or download sites often use RAR
- Downloading large content — multi-part RAR splits are common for content over 1 GB
- Accessing encrypted archives — RAR's encryption is trusted for sensitive file distribution
- Recovering damaged downloads — RAR's recovery records can repair partially corrupted archives
- Browsing archive contents — preview files inside without extracting everything
Creating Archives (Alternative Formats)
Since RAR creation requires a WinRAR license, AnExplorer offers creation in open formats:
- Select files → Compress → choose ZIP (universal compatibility) or 7Z (best compression)
- Both formats support password protection and are widely compatible
Troubleshooting
"Wrong password" but you are sure the password is correct
- RAR passwords are case-sensitive. Check for extra spaces or capitalization.
- Some RAR files use passwords with special characters — ensure your keyboard is not auto-correcting.
- The archive may use a different encoding for the password. Try typing it slowly without autocorrect.
Multi-part RAR extraction fails
- Verify all parts are in the same folder — one missing part causes failure.
- Check file sizes — all parts except the last should be the same size. If one is smaller, the download was incomplete.
- Re-download the incomplete part.
"Unsupported archive format" error
- The file may be a RAR5 archive being opened by an older extractor. AnExplorer supports RAR5 natively — ensure you are using AnExplorer to open it.
- The file might not actually be a RAR archive despite the extension. It could be renamed.
Extraction is very slow
- Solid RAR archives require reading the entire archive to extract a single file. This is normal behavior for solid archives.
- Large archives with high compression settings are CPU-intensive. A 2 GB solid archive may take several minutes on mid-range devices.
- Ensure your device has sufficient free storage (at least 2x the archive size).