Before doing anything else, check if the file really is a FreeArc archive. Use a hex editor or a simple text viewer.
How to check:
What if you don't see "Arc"?
| Step | Action |
|------|--------|
| 1 | Verify file extension – Ensure it’s actually .arc. If not, rename or open with correct tool (e.g., 7-Zip might handle some ARC variants). |
| 2 | Check file size – If file size is 0 KB or very small, download again. |
| 3 | Test with other archivers – Try opening with 7-Zip, WinRAR, or PeaZip (some support partial ARC compatibility). |
| 4 | Use arc command-line tool – Run arc t archive.arc (test integrity) for more detailed errors. |
| 5 | Repair if possible – FreeArc has arc r archive.arc (repair), but success is limited if header is destroyed. |
| 6 | Re-download from trusted source – If corrupted, obtain a clean copy. |
FreeArc has a hidden but powerful repair feature. Most users never try this. Before doing anything else, check if the file
Command line method:
This attempts to reconstruct the archive index. If successful, it will create a new file named rebuilt.arc. What if you don't see "Arc"
If the file is a legitimate FreeArc archive (usually ending in .arc), the download was likely interrupted or corrupted during transfer.
If you are installing a game repack and get this error: This attempts to reconstruct the archive index
If the error says "corrupt link" specifically, the issue might be with the path, not the file.
Solutions: