Convert 001 to 009
How to join .001 to .009 split files using 7-Zip or HJSplit and restore the original file.
How to convert 001 to 009 file
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Understanding 001 and 009 file formats
001 and 009 files are not standard file formats but rather parts of a split archive. When large files are divided into smaller segments for easier distribution or storage, each segment is given a sequential extension such as .001, .002, up to .009, and beyond. These files are typically created by file-splitting utilities or archiving tools like WinRAR, 7-Zip, or HJSplit.
Purpose of converting 001 to 009 files
Converting between .001 and .009 files is not a traditional conversion process. Instead, the goal is to recombine these split parts into the original file, such as a video, archive, or document. You cannot simply rename or convert a .001 file to .009; you must join all parts in the correct order to reconstruct the original file.
How to join 001 to 009 files
To combine these files, you need all parts from .001 through .009 (and possibly more). The best software for this process is 7-Zip (free and open-source) or HJSplit (lightweight and easy to use).
Step-by-step: Joining 001 to 009 files with 7-Zip
- Ensure all split files (.001, .002, ..., .009) are in the same folder.
- Right-click the .001 file.
- Select 7-Zip → Extract Here or 7-Zip → Extract to "folder".
- 7-Zip will automatically detect and join all sequential parts, reconstructing the original file.
Alternative: Using HJSplit
- Open HJSplit.
- Click Join.
- Browse and select the .001 file.
- Click Start to join all parts into the original file.
Tips and important notes
- All parts must be present and named correctly for successful joining.
- If any part is missing or corrupted, the process will fail.
- After joining, you may need to extract the resulting file if it is an archive (e.g., .rar or .zip).
Best software for joining 001 to 009 files
- 7-Zip (Windows, free): https://www.7-zip.org/
- HJSplit (Windows, free): http://www.hjsplit.org/
- WinRAR (Windows, paid/free trial): https://www.win-rar.com/
Note: This 001 to 009 conversion record is incomplete, must be verified, and may contain inaccuracies. Please vote below whether you found this information helpful or not.
