EPH file format description

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

1 filename extension(s) found in our database.

.eph - SiRFDemo GPS Ephemeris File

The EPH data files are related to SirfDemo. The EPH file is a SiRFDemo GPS Ephemeris File. The SiRFDemo software is a tool that provides real-time monitoring of an attached GPS receiver's operation such as satellites being tracked, observed signal strength, and current position. The SirfDemo seems to be no longer supported.

Data files
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SiRFDemo GPS Ephemeris File related extensions:
SiRFDemo GPS Almanac File

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

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

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

dph, eh, ehp, ep, epb, epg, epj, epm, ept, epu, fph, ph, sph, wph

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

EPSi Firmware Image
EDIUS Project
Ribbons Sphere Definition
EP Budgeting Data File
Fisher and Paykel Icon Data
Atari Falcon DelmPaint Image

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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DataTypes.net >> EPH file