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FME Filenames and Locations

Dataset Locations

Click on readers and writers in the Navigator and select Open Containing Folder (Ctrl + O).

File Extensions

FME has many associated file extensions. The default locations are listed here but can also change depending on where you installed FME.

Filename/File Extension

Type/Description

Default Location

coordsys.db

contains the names and descriptions of all predefined coordinate systems

FME installation folder

 

.fds

Custom Formats

My Documents\FME\Formats

.fme

 

FME mapping file (FME Quick Translator)

user-defined

.fmv

FME Universal Viewer file

user-defined

.fmw

 

FME Workbench workspace

 

My Documents\My FME Workspaces

 

.fmwt

FME Workbench template

This extension is also used for templates downloaded from the FME Store.

My Documents\FME\Templates

.fmx

Custom Transformers

My Documents\FME\Transformers

.fmxlist

User-defined transformer list

My Documents\FME\TransformerCategories

.fmc

FME catalog file

Contains instructions to direct Workbench to download a specified resource from FME Knowledge Center.com. Since these files contain only instructions (XML), they are small in size.

 

.gdc, .gsb, .las, .los, .mrt, .txt, .csv

Coordinate system and grid data files

Reproject

Reproject\GridData

.wbtheme Workbench theme file My Documents\FME\Themes

MyCoordSysDefs.fme

custom coordinate system definitions

In the FME installation folder, Reproject subfolder

LocalCoordSysDefs.fme

This file is automatically loaded and made available to each FME session, to allow sites to add their own coordinate systems. It contains a series of COORDINATE_SYSTEM_DEF, DATUM_DEF, ELLIPSOID_DEF, and UNIT_DEF lines that define additional, site-specific coordinate systems.

You can edit these files to add your own definitions.

Reproject subfolder under the FME installation folder

Defining Custom Units