File Extension Library

.FMX File Extension

  • Developer by: FileMaker
  • Category: Plugin Files

What are .FMX files and how to open them?

Can't open .FMX file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .FMX file.

What is a .FMX file extension?

.FMX file extension is created by FileMaker. .FMX has been classified as Plugin Files.

.FMX is FileMaker Plug-in

An FMX file is a plug-in used by the Windows version of FileMaker Pro, a database program. It contains information that expands the capabilities of the FileMaker software, such as automating certain functions.

When you install plug-ins to FileMaker Pro, the FMX files are placed in the "Extensions" folder, which is located in the FileMaker directory:

Windows XP:

C:\Documents_and_Settings\user_name\LocalSettings\ApplicationData\FileMaker\FileMaker Pro\version\Extensions\

Windows Vista, 7, 8, & 10:


NOTE: If you use the macOS version of FileMaker Pro, the plug-ins are contained in .FMPLUGIN files.

List of all softwares that can open the FileMaker Plug-in
FileMaker Pro Advanced

How to fix problems with .FMX files

  1. You need to update the application that you normally use to open .FMX files. Only the latest version of the software supports the current .FMX file format
  2. You need to check the .FMX file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)