The File Extensions Database


.FJ3 File Extension

  • Developer by: IBM
  • Category: Spreadsheet and workbook Files

What is an .FJ3 file?

.FJ3 is Lotus 1-2-3 worksheet

The fj3 file suffix is related to the Lotus 1-2-3, a spreadsheet editing program for Microsoft Windows and other operating systems, developed by IBM.

The fj3 file stores worksheet from Japanese version of Lotus 1-2-3.

MIME types:
application/vnd.lotus-1-2-3

This fj3 file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.


How to open:

Use Lotus 1-2-3 to open *.fj3 files.

How to convert:

Lotus 1-2-3 is able to export *.fj3 files to other formats.

How to solve problems with FJ3 files

  • Associate the FJ3 file extension with the correct application. On :
    Windows: Right click on any FJ3 file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.FJ3 files". Mac: Right click (or Ctrl-click) the FJ3 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 .FJ3 is Lotus 1-2-3 worksheet. Because only the current version supports the latest FJ3 file format. Search, therefore, e.g. on the IBM manufacturer website after an available .FJ3 is Lotus 1-2-3 worksheet update.
  • To make sure that your FJ3 file is not corrupted or virus-infected, get the file again and scan it with antivirus software.