"Cannot open file as archive" — how to recover the files inside.
7-Zip showed "Cannot open file as archive." because it could not find a usable archive index in the file. FileFix scans the local records that survived, rebuilds a fresh ZIP directory, and shows the recovered file list before you decide. A one-time $5 — and only if the repair works.
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Recovering what we can.
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Here's what we recovered.
Review the recovery summary before checkout.
Your files auto-delete — delete them sooner anytime
No person looks at your file as part of repair
Repair your file
Choose a supported file to see what can be repaired before checkout.
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You preview before you pay. If the download is materially worse than the preview you approved, we'll refund you.
Try another fileGood news — your file isn't damaged. No charge.
There's nothing to repair. If it still looks broken, the issue may be the player, codec, or viewer on your device rather than the file itself.
We couldn't recover this one.
The file is too damaged to rebuild, so there is nothing to preview and no charge.
Have another clip from the same device?
A healthy video recorded on the same device — ideally the same settings — gives the repair engine a template to rebuild from. It can unlock repairs that fail on their own.
Unrepaired files are kept encrypted for up to 30 days, then deleted.
FileFix can't fix that kind of file yet.
Right now we repair video, audio, document, and image files (MP4, MOV, M4V, MKV, AVI, TS, MTS, M2TS, MPG, MPEG, VOB, 3GP, WebM, FLV, M4A, WAV, MP3, AAC, FLAC, OGG, AIFF, XLSX, DOCX, PPTX, ODT, ZIP, PDF, AI, HEIC, and HEIF). We're adding support for more formats over time.
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FileFix can often repair this kind of damage if the file is recoverable.
Why this happens
Archive tools normally start from the end-of-central-directory record and the central directory that indexes every member. When that tail is missing or inconsistent — common after an interrupted download or copy — 7-Zip reports that it cannot open the file as an archive even though earlier member data may be intact.
The message describes an index failure, not necessarily damaged contents. Individual members stored before the damage often remain readable; the archive simply lacks the directory a tool needs to locate them.
The same message can also appear when the file was never a ZIP at all — a renamed download, an HTML error page saved with a .zip name, or a different archive type that lost its extension. A quick self-check: if a re-download from the original source produces the same error, and other archives open normally in the same tool, the file itself is damaged rather than your extractor.
FileFix does not depend on the old central directory. It scans forward for local file headers, decompresses readable stored and DEFLATE members under safety limits, and writes a new ZIP with a rebuilt directory. The summary lists the entries recovered from the uploaded bytes rather than assuming the original archive was complete.
You never install anything, and you don't create an account to try it. The recovered file list is shown before you decide — so if the scan finds nothing recoverable, you see that result and pay nothing.
What we can and can't recover
We can usually fix
- Archives that show "unexpected end of archive"
- Archives cut off during a download or copy
- ZIP files with a damaged central directory
- Archives that show the right size but won't open
We can't fix
- Encrypted archives
- Multi-part or split archives missing their other parts
- Genuinely empty (0-byte) files
- Files on physically damaged drives (that's hardware data recovery)
How it works
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Upload Drop the file in. It uploads over an encrypted connection. The repair runs automatically — no person looks at your file.
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Free Watermarked Preview You see exactly what we recovered — the list of files recovered from the archive.
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Pay & Download If the summary shows what you need, unlock the repaired ZIP archive for a one-time $5.
You see a recovery summary built from your actual file before you decide anything — so you never guess.
See what's recoverable.
Free recovery summary · private & auto-deleted
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Questions
Size alone does not make an archive readable. If the central directory at the end is missing or damaged, the tool has no index to locate members and stops, even though member data may still exist earlier in the file.
Only the members whose local records survived in the uploaded bytes are rebuilt. A member that crossed the damaged region may be partial, and the free file list shows exactly what the new archive contains before checkout.
Yes, if the source is still available. A complete re-download is always preferable because repair cannot supply bytes that never arrived; use FileFix when a clean copy is not obtainable.
Usually not. The message means 7-Zip could not find a usable index, and the index lives at the end of the file — the part most often damaged by an interrupted transfer. The member data stored earlier is often intact, which is exactly what the rebuild recovers.
It happens — a renamed archive of another type, a half-downloaded installer, or an HTML error page saved under a .zip name all trigger this message. The free analysis works from the actual bytes, so if there are no ZIP records inside to recover, you see that result and pay nothing.