Convert 015 to 003

Understanding 015 and 003 file formats

015 and 003 files are not standard file formats but rather parts of a split archive, commonly created by file splitting utilities such as HJSplit or 7-Zip. These files represent sequential segments of a larger file that has been divided for easier distribution or storage. The numbers (e.g., .001, .002, .003, ..., .015) indicate the order of the parts.

Purpose of converting 015 to 003

Technically, you do not convert a .015 file to a .003 file. Instead, you need to rejoin all the split parts (from .001 to .015) to reconstruct the original file. Renaming or converting a .015 file to .003 will not work and may corrupt the data. The correct process is to use a file joining tool to combine all parts in the correct order.

How to join split files (015, 003, etc.)

To reassemble the original file from its split parts, follow these steps:

1. Ensure you have all parts of the split archive (e.g., .001, .002, .003, ..., .015) in the same folder.
2. Download and install a file joining tool such as HJSplit or 7-Zip.
3. Open the tool and select the Join or Combine function.
4. Select the .001 file as the starting point. The tool will automatically detect and join the subsequent parts (.002, .003, ..., .015).
5. After the process completes, you will have the original file restored.

Recommended software for joining split files

• HJSplit (Windows, Mac, Linux): Simple and lightweight tool for splitting and joining files.
• 7-Zip (Windows): Free and open-source archiver that can join split files and extract archives.

To join files with 7-Zip, right-click the .001 file and choose 7-Zip → Extract Here.

Key points to remember

• .015 and .003 are not standalone formats but parts of a split archive.
• Do not attempt to convert or rename these files; use a joining tool instead.
• Always keep all parts in the same directory for successful reassembly.