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EFT File - What is an .eft file and how do I open it?
Learn about .EFT files and view a list of programs that open them.
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What is an EFT file? An EFT file is a settings file used by Logitech Gaming Software, a program used to customize Logitech G gaming mice, headsets, speakers, select wheels, and keyboards. It contains lighting effects information for a keyboard, which includes the device layout and colors. EFT files are often created by and shared with other gamers who use Logitech devices.
More Information You may create a variety of effects using the Lighting Editor in Logitech Gaming Software. The effects can be simple color schemes or complex animations, such as audio waves, spinning RGB colors, a waving American flag, and a sunrise. To open an EFT file in Logitech Gaming Software, click the Settings gear icon in the Lighting Editor interface, select Import , and choose the EFT file you want to open. To create an EFT file in Logitech Gaming Software, click the Settings gear icon in the Lighting Editor interface, select Create New Effect , modify the effect, and select Export from the Settings menu.
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.EFT File Extension
2 file types use the .eft file extension.
Logitech Lighting Effect File
| Developer | Logitech |
| Popularity |
3.5 | 2 Votes |
What is an EFT file?
An EFT file is a settings file used by Logitech Gaming Software, a program used to customize Logitech G gaming mice, headsets, speakers, select wheels, and keyboards. It contains lighting effects information for a keyboard, which includes the device layout and colors. EFT files are often created by and shared with other gamers who use Logitech devices.
More Information
You may create a variety of effects using the Lighting Editor in Logitech Gaming Software. The effects can be simple color schemes or complex animations, such as audio waves, spinning RGB colors, a waving American flag, and a sunrise.
To open an EFT file in Logitech Gaming Software, click the Settings gear icon in the Lighting Editor interface, select Import , and choose the EFT file you want to open. To create an EFT file in Logitech Gaming Software, click the Settings gear icon in the Lighting Editor interface, select Create New Effect , modify the effect, and select Export from the Settings menu.
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Programs that open EFT files
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Program Name
Platform
Reset
X
Windows
Logitech Gaming Software
Free
Mac
Logitech Gaming Software
Free
Category: Settings Files
Updated: October 24, 2018
Electronic Fingerprint Transmission File
| Developer | FBI |
| Popularity |
2.0 | 1 Vote |
An EFT file may also be a fingerprint data file that stores digital representations of fingerprints in the Electronic Fingerprint Transmission Specification (EFTS). It contains image and text data, with image data including scanned fingerprint images, and text data including personal and administrative information, such as the subject's name, ID numbers, and transaction codes. Various government agencies, law enforcement, and biometric software systems support EFT files, allowing users to store and exchange fingerprint records.
More Information
The U.S. Federal Bureau of Investigation (FBI) created the EFTS standard to ensure consistent fingerprint data formatting across different systems. These files are commonly used in identity verification, background checks, and criminal investigations.
How to open an EFT file
You can open and view EFT files with the FBI's EBTS-compliant systems. Because these files often contain sensitive biometric data, they are usually accessed only by authorized users within secure government or law enforcement environments.
Some third-party forensic tools may support EFT files, as well. For example, Net-X Solutions NIST Viewer can open EFT files in the American National Standards Institute ( ANSI ) and National Institute of Standards and Technology (NIST) standards.
Programs that open EFT files
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Pricing
Program Name
Platform
Reset
X
Windows
Net-X Solutions NIST Viewer
Free
Category: Data Files
Updated: November 5, 2025