The File Extensions Database

.7Z.001 File Extension

  • Developer by: 7-Zip
  • Category: Compressed Files
  • Format: Binary

What is an .7Z.001 file?

.7Z.001 is 7-Zip Split Archive Part 1 File

Part 1 of a compressed archive created by 7-Zip, a free file compression and decompression utility; contains one part of a multi-volume archive that splits a .7Z file into parts (other parts use the ".7z.002," ".7z.003," etc. extensions); enables large 7Z files to be broken into smaller parts for piecewise download or for storage on external media with fixed capacities.

You need all all parts of a 7-Zip split archive in order for 7-Zip to rebuild the original ".7z" file. Once 7-Zip has reconstructed the 7Z file, it can then decompress the 7Z file to extract the files from the compressed archive.

NOTE: 7Z.001 files use a compound extension, which uses both .7Z and .001 extensions.

Programs that open 7-Zip Split Archive Part 1 File
Smith Micro StuffIt Deluxe for Windows
Smith Micro StuffIt Deluxe 16

How to solve problems with 7Z.001 files

  • Associate the 7Z.001 file extension with the correct application. On :
    Windows: Right click on any 7Z.001 file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.7Z.001 files". Mac: Right click (or Ctrl-click) the 7Z.001 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 .7Z.001 is 7-Zip Split Archive Part 1 File. Because only the current version supports the latest 7Z.001 file format. Search, therefore, e.g. on the 7-Zip manufacturer website after an available .7Z.001 is 7-Zip Split Archive Part 1 File update.
  • To make sure that your 7Z.001 file is not corrupted or virus-infected, get the file again and scan it with antivirus software.