20 Best File Repair Tools You Must Know in 2026

An important distinction. File repair fixes a file that exists but won't open — the data is there but the structure is damaged. Data recovery gets back a file that's gone — deleted or lost. This guide is about repair. If your file was deleted or lost, see our deleted file recovery guide first. And if files keep corrupting, the real culprit may be a failing drive — more on that below.

Before third-party tools, many programs have built-in repair:

1. Microsoft Office "Open and Repair" — in the Open dialog, click the arrow next to Open and choose Open and Repair, for Word, Excel and PowerPoint.
2. Excel's built-in recovery — Excel can often recover data from a corrupted workbook automatically or via Open and Repair.
3. CHKDSK / First Aid — repairs file-system errors that cause corruption (use with care on a healthy drive).
4. WinRAR / 7-Zip repair — WinRAR's "Repair archive" and 7-Zip's testing can fix or extract from damaged archives.
5. VLC Media Player — plays and repairs many damaged video files, including a built-in AVI fix.

1. Stellar Repair for Word / Excel / PowerPoint — dedicated tools that rebuild corrupted Office files.
2. Kernel for Word/Excel/PowerPoint — reconstructs damaged Office documents.
3. Recovery Toolbox — a suite covering Word, Excel, PDF, and more.
4. DataNumen Office Repair — well-regarded for stubborn Office corruption.

1. Stellar Repair for PDF — rebuilds corrupted PDF files.
2. PDF2Go / online PDF repair — browser-based repair for lighter corruption.
3. Adobe Acrobat — can sometimes recover a damaged PDF on open.

1. Stellar Repair for Photo — fixes corrupted JPEG and RAW images, often using a reference file.
2. JPEGmedic / PixRecovery — specialist JPEG repair.
3. Wondershare Repairit (Photo) — broad image-format repair with previews.

1. Stellar Repair for Video — rebuilds corrupted MP4, MOV, MPEG and AVI using a healthy reference clip.
2. Wondershare Repairit (Video) — user-friendly video repair across formats.
3. Grau GmbH Video Repair Tool — a professional-grade video repair option.

1. DataNumen Archive Repair — recovers data from corrupted Zip and other archives.
2. Hetman File Repair / general file repair suites — broad tools covering multiple file types.

Being straight helps: repair tools fix damaged structure, not missing data. If the file's actual content was overwritten or is absent (for example, a video recovered from a card that was partly overwritten), no repair tool can rebuild what isn't there. Repair works best when the data is intact and only the header, index, or structure is damaged. Also, always work on a copy of the corrupted file, so a failed repair attempt doesn't make things worse — and check that a "repaired" file is genuinely complete before relying on it.

Here's a crucial point: if files keep corrupting, the culprit is often a failing drive developing bad sectors, not the files themselves. Repairing individual files won't fix that — and continuing to use a failing drive corrupts more data. If you see repeated corruption alongside slowdowns, errors, or noises, check the drive's SMART health and back up immediately.

Call a lab when files are corrupting because the drive is failing, when corrupted files are irreplaceable and repair tools can't fix them, or when the storage is damaged or not detected. Labs recover data from failing drives and can handle corruption tied to hardware — the root cause repair tools can't address.

• How to Recover or Repair Corrupted MPEG & Video Files
• How to Recover a Deleted or Unsaved PowerPoint File
• How to Recover a Corrupted Hard Disk
• Hard Drive Recovery in Singapore