There are 4 other file types using
the SDM file extension!

empty icon.sdm - Sun Download Manager download instruction data

sdm icon.sdm - StarOffice mail file

empty icon.sdm - Dive Manager file

empty icon.sdm - Smart Diary Suity file

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SDM file extension - Spatial Data Modeling Language file

What is sdm file? How to open sdm files?

File type specification:

GIS, GPS navigation and map file type icon GIS, GPS navigation and map file type

The SDM file extension is also used for files written in the Spatial Data Modeling Language.

SDML is a spatial description language used for storing CAD and GIS data, such as found in Landscape Planning, Design, and Architectural databases.

SDML currently exists in two versions: the old SDML format and the new (Version 1.0) format. The old format is derived from the ASCII-based format used in the Silicon Graphics CLRview and PolyTRIM software environments. The new format, released in 05Feb95, is a more detailed, capable, and size-optimized revision of the old SDML and supports all the features of the Silicon Graphics CLRMosaic software.

Help how to open:

The best way to handle GIS files is to use their native software. If you do not have access to it, look for some 3rd party alternatives with broad format support or perhaps a converter that would allow you to export the data to some interchange format.

For general information try to look at:
Basic info how to open GIS, GPS or map files

How to convert:

Special GIS converter exist and may help users to transfer or transform their maps and other navigation data between programs or devices.

For general information try to look at:
Basic info how to convert GIS, GPS or map files

List of recommended software applications associated to the .sdm file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open sdm file, edit sdm file, convert sdm file, view sdm file, play sdm file etc. (if exist software for corresponding action in's database).

sdm file viewer - programs that view sdm file - Spatial Data Modeling Language file

Programs supporting the exension sdm on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about ArcGIS for view sdm file action.

Microsoft Windows:

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