>> ET1 file

ET1 file format description

Many people share .et1 files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .et1 file can be edited, converted or printed with. On this page, we try to provide assistance for handling .et1 files.

1 filename extension(s) found in our database.

.et1 - ENERGY-10 Weather Data

The ET1 data files are related to ENERGY-10. ET1 file is an ENERGY-10 Weather Data. ENERGY-10 is a PC-based building energy simulation program for smaller buildings that focuses on the early stages of the architectural design process and the integration of daylighting, passive solar design, low-energy cooling, and energy-efficient equipment into high-performance buildings. The ENERGY-10 seems to be no longer supported.

Data files
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ENERGY-10 Weather Data related extensions:
Microgateway Policy Implementation Data
MokkAnnotator Mokkan Glass Data
POP Time-averaged History Data
VistaDB Database
3D Proliner Measurement Data
BeLight Disc Cover Data

Naturally, other applications may also use the .et1 file extension. Even harmful programs can create .et1 files. Be especially cautious with .et1 files coming from an unknown source!

Can't open a .et1 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 .et1 file extension is often given incorrectly!

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

er1, dt1, te1, rt1, etw, etl, st1, ft1, etq, et

Is it possible that the filename extension is misspelled?

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Operating systems

DataTypes.net 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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