The File Extensions Database

.A01 File Extension

  • Developer by: ESTsoft
  • Category: Compressed Files

What is an .A01 file?

.A01 is ALZip Third Split Archive File

Third file of a spanned archive created with ALZip, a file compression utility for Windows systems; uses proprietary ALZ compression and is saved along with other split archives; preceded by the .ALZ and .A00 files and is followed by the .A02 file.

NOTE: All files that make up the spanned archive must be available in order for the original file archive to be reassembled.

Programs that open ALZip Third Split Archive File
ESTsoft ALZip

How to solve problems with A01 files

  • Associate the A01 file extension with the correct application. On :
    Windows: Right click on any A01 file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.A01 files". Mac: Right click (or Ctrl-click) the A01 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 .A01 is ALZip Third Split Archive File. Because only the current version supports the latest A01 file format. Search, therefore, e.g. on the ESTsoft manufacturer website after an available .A01 is ALZip Third Split Archive File update.
  • To make sure that your A01 file is not corrupted or virus-infected, get the file again and scan it with antivirus software.