What is a .FM3 File And How To Open It – IBM

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Have you downloaded a file with .fm3 extension, but you have never seen this extension before? Perhaps you know what the file is, but you simply don’t know how to open it. Fear not, in this article we will show you how to easily open the .fm3 file in few simple steps on various systems.

What is a .FM3 file?

The file extension .FM3 is Lotus 1-2-3 Spreadsheet Format File. This file extension was developed by IBM. This settings related file is in binary format.

What to know

There is currently 0 software that can open the .fm3 file on 0 platforms.


We don’t register any way of opening this file extension at the moment, kindly let us know if you have any information.