Convert A00 to A02

Understanding a00 and a02 file formats

A00 and A02 files are both parts of a multi-volume archive created by the ARJ compression utility. When large files are split into several parts for easier storage or transfer, ARJ assigns sequential extensions such as .a00, .a01, .a02, and so on. These files are not standalone archives; they are segments of a larger compressed set, with the main archive typically having the .arj extension.

Purpose of converting a00 to a02

Technically, you do not convert an .a00 file to an .a02 file. Instead, both are parts of the same split archive. If you need to access the contents, you must have all parts of the archive (including the .arj, .a00, .a01, .a02, etc.) and extract them together. Renaming or converting .a00 to .a02 will not make the archive usable and may corrupt the data.

How to extract multi-part ARJ archives

To access the files within a multi-part ARJ archive, use an archive manager that supports ARJ format. The extraction process automatically reads all parts in sequence.

Best software for handling ARJ multi-part archives

• WinRAR (Windows): Open the .arj file and extract; ensure all parts (.arj, .a00, .a01, .a02, etc.) are in the same folder.
• 7-Zip (Windows): Right-click the .arj file and select 7-Zip → Extract Here.
• unarj (Linux): Use the command unarj x archive.arj in the terminal.

Step-by-step extraction using 7-Zip

1. Place all parts of the archive (.arj, .a00, .a01, .a02, etc.) in the same directory.
2. Right-click the .arj file.
3. Select 7-Zip → Extract Here or 7-Zip → Extract to "folder".
4. Wait for the extraction to complete. The software will automatically use all parts in order.

Important notes

• Do not attempt to convert or rename .a00 to .a02. These are sequential parts and must remain unchanged.
• Always keep all parts together for successful extraction.