The File Extensions Database


.004 File Extension

  • Developer by: Igor Pavlov
  • Category: Archive and compressed Files

What is an .004 file?

.004 is Compressed file from a multi-volume archive (part 4)

The 004 file extension is associated with several archivers or compression tools, which are using, or did use in the past, the 004 file extension for its multi-volume files or archives, such as Winrar (see part4.rar) or 7-Zip (see 7z.004).

The general file sequence is 001, 002, 003, etc.. and you will need all parts of the multi-volume archive to successfully extract the content.

In some cases, the 004 file extension doesn't mean the first part of the multi-volume archive, but the fourth part of split file.

The first thing you have to do is to merge split files (001, 002, 003, etc.) in to one file (usually split archive) via split tools. Afterwards you can use a compression utility to extract data from the merge archive.


How to open:

To open or extract the content of the multi-volume archive just put all the parts in same directory and extract the first part in your favourite archiver, such as WinRar or 7-Zip.

How to convert:

Only complete archive can be converted in to another archive or compression format. The easiest way how to convert complete multi-volume archive is to decompress the archive with the use of supported archiving or compression tool and repack the content with another compression or archive application of your choice.

How to solve problems with 004 files

  • Associate the 004 file extension with the correct application. On :
    Windows: Right click on any 004 file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.004 files". Mac: Right click (or Ctrl-click) the 004 file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .004 is Compressed file from a multi-volume archive (part 4). Because only the current version supports the latest 004 file format. Search, therefore, e.g. on the Igor Pavlov manufacturer website after an available .004 is Compressed file from a multi-volume archive (part 4) update.
  • To make sure that your 004 file is not corrupted or virus-infected, get the file again and scan it with antivirus software.