An A02 file is simply the third part of a split archive and won’t open individually because the structural header lives in the first chunk, so programs return errors such as "cannot open volume"; proper extraction requires placing all volumes in one folder and opening the starter—either the main .ARJ or the .A00—allowing archive tools to pull automatically from A01, A02, etc.; if issues occur, they usually reference missing files, incomplete parts, or CRC errors, and sorting the directory by name helps verify that every expected volume is present.
To verify what your A02 belongs to, open the folder and sort it by name, then look for identical prefixes—e.g., `backup.a00`, `backup.a01`, `backup.a02`—and check if a `.arj` file appears, which serves as the correct entry point; if there’s no `.arj` and the set starts at `.a00`, that’s the file to open via 7-Zip or WinRAR, and gaps in numbering or mismatched filenames signal missing or damaged segments that need
re-copying or re-downloading before extraction succeeds.
Calling A02 "part 3" means it’s merely the third split segment, part of `.A00`, `.A01`, `.A02` file groups created for easier transfer or storage, and it’s not an independent format but a continuation of compressed data whose header lives in the first volume or `.ARJ`; when names like `something. If you cherished this article and you would like to get far more info regarding
best app to open A02 files kindly stop by our own web page. a00`, `something.a01`, `something.a02` match, place them together and open the initial file so your extraction software can stitch A01 and A02 back into the original content.
An A02 file typically won’t open by itself because it’s a non-header segment in a split archive, and the critical metadata—archive header, index, compression specs, and integrity data—lives in the initial file like `.A00` or `.ARJ`, so when you open A02 directly, the tool finds no header at the start and throws errors like "file corrupt", even though the set may be fine; placing all volumes in one folder and opening the first one is what allows the extractor to pull A02 and the rest in sequence.
When a tool like 7-Zip or WinRAR "uses" A02, it isn’t opening it individually, because extraction starts from the initial `.ARJ` or `.A00` which contains the archive header, and volume data is consumed sequentially—first `.A00`, then `.A01`, then `.A02`—without any manual merging; if A02 is absent or corrupted, you get errors such as "end of archive".