.DT1 File Overview

File Extension:	DT1
File Type Description:	DTED Level 1 File
File Type Developer:	National Geospatial-Intelligence Agency
Primary Associated Software:	ESRI ArcGIS for Desktop
Primary Software Developer:	ESRI (Environmental Systems Research Institute)

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What is File Extension DT1?

Blue Marble Geographics developed the DTED Level 1 File file type when the Global Mapper was initially released. According to our internal data, DTED Level 1 File files are most popular with users in United States, with a majority of them running Windows 10. Most of these users are running the Google Chrome web browser.

Associated Developers and Software

	TatukGIS Viewer by TatukGIS sp. z o.o.
	Global Mapper by Blue Marble Geographics
	Diablo II by Blizzard Entertainment Inc.
	MapInfo Professional by Pitney Bowes
	ESRI ArcGIS for Desktop by ESRI (Environmental Systems Research Institute)

Top DT1 User Languages

Top DT1 File User Browsers

Desktop Friendly?

Mobile Friendly?

Top User Operating Systems


Windows 10	Windows 11	Windows 6	Windows 8.1

Associated Operating Systems

	Windows
	Mac

Other File Types Related to DT1 Files

Extension	File Type Developer	File Category	File Type Description
.MPK	ESRI	GIS Files	ArcGIS Map Package
.EFS	ESRI	GIS Files	ESRI Spatial Binary File
.KEY	Unknown Developer	Encoded Files	License/ Encrypted Security Key File
.TIMESTAMP	ESRI	GIS Files	Geodatabase Timestamp File
.GDBTABLE	Open Source	Data Files	Geodatabase Table File
.SHP	Autodesk, Inc.	3D Image Files	AutoCAD Shape File
.SML	ESRI	Developer Files	ARC/INFO Simple Macro Language File
.SLD	ESRI (Environmental Systems Research Institute)	GIS Files	Styled Layer Descriptor
.EGD	ESRI (Environmental Systems Research Institute)	GIS Files	Encrypted Grid Shape File
.VCT	Clark Labs	GIS Files	IDRISI Vector Image