>> DT1 file

DT1 file format description

Many people share .dt1 files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .dt1 file can be edited, converted or printed with. On this page, we try to provide assistance for handling .dt1 files.

1 filename extension(s) found in our database.

.dt1 - DTED Level 1 Data

The DT1 data files are related to ArcGIS. DT1 file is a DTED Level 1 Data. The .dt0, .dt1, and .dt2 are the terrain elevation data files for DTED Level 0, DTED Level 1 and DTED Level 2, respectively.

Data files
- / -
DTED Level 1 Data related extensions:
ArcGIS Option Data
ArcGIS Optional Index
ArcGIS Attribute Index
ArcGIS Auxilliary File
ArcGIS BIL World File
ArcGIS BMP World Data

Naturally, other applications may also use the .dt1 file extension. Even harmful programs can create .dt1 files. Be especially cautious with .dt1 files coming from an unknown source!

Can't open a .dt1 file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .dt1 file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

d1, df1, dg1, dt, dtl, dtq, dtw, et1, ft1, rt1, st1, t1, td1, wt1

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Progress OpenEdge Database
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Omnis Native Data File
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Atari Falcon DuneGraph Image
SAS/GIS TIGER Basic Data Record

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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If you have useful information about the .dt1 file format, then write to us!

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