>> FM3 file

FM3 file format description

Many people share .fm3 files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .fm3 file can be edited, converted or printed with. On this page, we try to provide assistance for handling .fm3 files.

1 filename extension(s) found in our database.

.fmt - Lotus 1-2-3 Worksheet Formatting Data

The FMT document files are related to Lotus 1-2-3. FMT file is a Lotus 1-2-3 Worksheet Formatting Data. Lotus 1-2-3 is a spreadsheet program designed for IBM-compatible personal computers by Lotus Corporation in 1982. The Lotus 1-2-3 seems to be no longer supported.

Lotus 1-2-3
Document files
- / -
all, fm2, fm3
Lotus 1-2-3 Worksheet Formatting Data related extensions:
Grisbi Document
QuarkXPress Library
QuarkXPress Book
QuarkXPress Dictionary Data
QuarkXPress Document Template
QuarkXPress Project Template

Naturally, other applications may also use the .fm3 file extension. Even harmful programs can create .fm3 files. Be especially cautious with .fm3 files coming from an unknown source!

Can't open a .fm3 file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .fm3 file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

cm3, dm3, fh3, fl3, fm, fme, fmr, fmw, gm3, m3, mf3, rm3, tm3

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

CaseMap 3 Data
BrainVoyager QX Functional Project
Quake 3 Arena Demo
FME Workbench
Gatan DigitalMicrograph 3 Image

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

If you have useful information about the .fm3 file format, then write to us!

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