Convert 006 to 004

Understanding 006 and 004 file formats

006 and 004 files are not standard file formats but are typically split archive parts created by file compression and archiving tools such as WinRAR or 7-Zip. When a large file is split into multiple parts for easier distribution or storage, each part is given a sequential extension like .001, .002, .003, and so on, up to .004, .005, .006, etc.

These files are not meant to be converted from one to another, but rather joined together to reconstruct the original file. Attempting to convert a .006 file to a .004 file will not yield a usable result, as each part contains a unique segment of the original data.

How to combine 006 and 004 files

To use these files, you need to have all parts of the split archive (e.g., .001, .002, .003, .004, .005, .006, etc.) in the same folder. The best way to extract the original file is to use a file archiver that supports split archives.

Recommended software for handling split archive files

• 7-Zip (Windows, free): Right-click the .001 file and select 7-Zip → Extract Here.
• WinRAR (Windows, paid with trial): Right-click the .001 file and choose Extract Here or Extract to [folder].
• Keka (macOS, free): Open the .001 file with Keka to extract the full archive.

Note: Always start extraction from the .001 file. The software will automatically process all subsequent parts (.002, .003, .004, .005, .006, etc.) as long as they are present in the same directory.

Summary

Files with .006 and .004 extensions are parts of a split archive and are not meant to be converted between each other. Use a file archiver like 7-Zip or WinRAR to extract the original file by starting with the .001 part.