Windows
How to Open a Multi-Part RAR Archive
A multi-part RAR archive is one archive split across several files; you extract it by opening the first volume with every other volume present.
Multi-part (or multi-volume) RAR archives split one large archive into smaller, fixed-size files, often to work around upload limits or make transfer easier. For background on why this splitting exists, see multi-part RAR files.
Keep all parts in one folder
Before extracting, make sure every volume of the set is downloaded and sitting in the same folder, with none renamed. Extraction tools locate the other volumes automatically based on the naming pattern and the folder they're in; a missing or misplaced file causes the extraction to stop partway through.
Two common naming patterns
| Pattern | Example files | What to open |
|---|---|---|
| Modern (.partN.rar) | archive.part1.rar, archive.part2.rar, archive.part3.rar | Open archive.part1.rar |
| Legacy (.rar/.rNN) | archive.rar, archive.r00, archive.r01 | Open archive.rar |
Steps to extract
- 1Confirm all volumes are presentCount the files against what you expect, or check the archive listing if you have one.
- 2Right-click the first volume onlyThat's .part1.rar in the modern pattern, or plain .rar in the legacy pattern.
- 3Choose Extract All or Extract HereThe tool automatically reads the remaining volumes from the same folder.
- 4Verify the extracted outputConfirm the expected files and folders appear once extraction finishes.
Common mistakes
- Trying to extract a later part (like .part2.rar) directly, instead of the first volume.
- Downloading only some of the volumes.
- Renaming volume files, which breaks the pattern the extractor relies on to find the rest of the set.
- Mistaking several independent archives for one multi-part set — see extracting multiple RAR files at once for that distinction.
Frequently asked questions
Which file do I open in a multi-part RAR set?
Always the first volume: archive.part1.rar in the modern naming pattern, or plain archive.rar in the legacy .r00/.r01 pattern.
Do I need to extract each volume separately?
No. Opening the first volume with all others present in the same folder extracts the whole set in one action.
What happens if one volume is missing?
Extraction will fail or stop partway through; you need every volume present to get the complete original files.
Can I rename the volume files?
No, avoid renaming them. Extraction tools rely on the naming pattern to find the rest of the set automatically.
Related guides
- Multi-Part (Split) RAR Files ExplainedA multi-part RAR archive splits one large compressed file into several smaller pieces that must all be present in one folder to extract correctly.
- How to Extract Multiple RAR Files at Once on WindowsYou can extract several RAR archives in one step by selecting them all before right-clicking, rather than opening each one individually.
- How to Fix a Corrupted RAR ArchiveA corrupted RAR archive can sometimes be repaired, and sometimes can't. Here's how to test one, what recovery tools actually do, and when re-downloading is the real fix.
- How to Extract a RAR FileExtracting a RAR archive turns its compressed contents back into normal, usable files. Here's how to do it correctly across platforms.
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