Troubleshooting
Unexpected End of Archive: Cause and Fix
"Unexpected end of archive" means the extractor reached the end of the file it has before it reached the end the archive's own header says should exist. Almost always this is a file that is simply shorter than it should be.
This error is different from a CRC error: a CRC failure means the bytes are all present but some don't match their checksum, while "unexpected end of archive" means bytes are missing entirely, cut off partway through. The archive's internal table of contents expects more data than actually exists in the file.
Diagnose in this order
- 1Check the file size against the sourceIf you downloaded the file, compare its size in File Explorer (right-click → Properties) to the size listed on the download page or in an email. A mismatch confirms truncation.
- 2Look for a missing final volumeIf this is a multi-part archive (
.part1.rar,.part2.rar, …), confirm every part through the last one is present in the same folder. See RAR archive has missing volume. - 3Re-download the fileA fresh download from the original source fixes the overwhelming majority of cases, since the usual cause is a network interruption during transfer.
- 4Try 'Keep broken files' as a last resortWinRAR's extraction dialog has a 'Keep broken files' option that writes out whatever data it could recover before the cutoff point. This salvages partial content from a large archive when re-downloading isn't possible, but files that were mid-write when the archive ended will still be incomplete or corrupt.
If re-downloading isn't an option
Ask whoever sent the file to re-share it, since asking them to check their own copy's size against yours quickly confirms whether the problem is on their end or yours. If the archive has a recovery record built in, WinRAR's repair function may reconstruct a valid archive even with some missing bytes, though a recovery record can't recreate data that was never included in the first place.
Frequently asked questions
Does this mean my file is corrupted?
It means the file is incomplete, which is a specific kind of corruption: data is missing from the end rather than scrambled in the middle.
Can WinRAR fix this automatically?
Only if the archive includes a recovery record and enough of the file is present to reconstruct. Otherwise, re-obtaining the file is more reliable than repair.
Is this the same as a CRC error?
No. CRC errors mean the data is present but doesn't match its checksum; this error means data is missing entirely.
Why does this happen with multi-part archives specifically?
If even one `.rarNN` volume is missing or was cut off during transfer, extraction stops at that point and reports the archive as ending unexpectedly.
Related guides
- Archive Troubleshooting: Fix RAR and ZIP ErrorsMost archive problems fall into a handful of categories. Find your symptom below and jump straight to the fix.
- RAR CRC Error: What It Means and What to DoA CRC error means the extracted data doesn't match the checksum stored for it when the archive was created — the bytes changed somewhere between compression and extraction.
- RAR Archive Has Missing Volume: What to CheckA missing-volume error means the extractor found a gap in a sequence of RAR parts it expected to be complete — one or more `.rar` or `.partNN.rar` files simply aren't in the folder.
- 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 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.
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