The File Extensions Database

.MMS File Extension

  • Developer by: IBM
  • Category: Data Files

What is an .MMS file?

.MMS is Transformation Extender Map Source File

An MMS file is a map source file created by Map Designer, which is a tool included with IBM Transformation Extender. It contains one or more maps in source format, which include input and output cards that define how to transform data objects from a source format to a target format.

To create an MMS file in Map Designer, select File → New → Map Source, choose the folder to save the map, name the map, and click Finish.

MMS files must be compiled before they can be executed in Transformation Extender. Compiled map source files are saved as MMC files.

IBM Transformation Extender is a program that allows users to integrate customer, business partner, and supplier transactions across an enterprise. Map Designer is used to develop maps, which provide input and output specifications for the transformation of data objects from the source format to the target format.

Programs that open Transformation Extender Map Source File
IBM Transformation Extender

How to solve problems with MMS files

  • Associate the MMS file extension with the correct application. On :
    Windows: Right click on any MMS file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.MMS files". Mac: Right click (or Ctrl-click) the MMS file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .MMS is Transformation Extender Map Source File. Because only the current version supports the latest MMS file format. Search, therefore, e.g. on the IBM manufacturer website after an available .MMS is Transformation Extender Map Source File update.
  • To make sure that your MMS file is not corrupted or virus-infected, get the file again and scan it with antivirus software.