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FL MPH
File conversion

Convert FL to MPH

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Is it possible to convert FL to MPH?
Yes - FL converts to MPH.

Open the .fl file in COMSOL Multiphysics (which imports COMSOL 3.5a .fl models) then File → Save As → .mph to convert to the modern format.

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Tested on macOS, Windows & Linux
Last verified Sep 2026

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How to convert FL to MPH

Converting a .FL file to .MPH lets you open the content in software that prefers the .MPH format, though some details may change compared with the original. We are still putting together the list of programs that handle .FL files.

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

About these formats

.FL FEMLAB / COMSOL Multiphysics Model File

An FL file is a FEMLAB/COMSOL Multiphysics model file containing a finite-element simulation. Open it with COMSOL Multiphysics, which can import legacy .fl files from COMSOL 3.5a. Note:…

Open .FL details →
.MPH Microsoft Publisher

A .MPH file is associated with Microsoft Publisher, a misc file.

Open .MPH details →