EFF file format description

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

4 filename extension(s) found in our database.

.eff - Infinity Engine 2.0 Effects

The EFF game data files are related to Baldurs Gate. The EFF file is an Infinity Engine 2.0 Effects. Infinity Engine is a game engine which allows the creation of isometric role-playing video games.

Baldurs Gate
Game Data files
- / -
Infinity Engine 2.0 Effects related extensions:
Riven Game Data
Re-Volt World File
Aquazone Fish Data
Red Alert 3 Replay
Breath of the Wild Compressed Model
Minecraft PE Data

.eff - EVS Field Data

The EFF data files are related to Earth Volumetric Studio. The EFF file is an EVS Field Data. C Tech's Earth Volumetric Studio (EVS) a three-dimensional volumetric Earth Science software system developed to address the needs of all Earth science disciplines.

Earth Volumetric Studio
Data files
- / -
EVS Field Data related extensions:
PLINK Epistatic Interaction Scan Reports Data
DivX Player Temporary Video Data
NP3 Compressed Nucleotide Database
WaterGEMS Transient Results Viewer Data
ZX-Editor Second Edition Format Data
Compressed Gamecube Disk Image

.eff - Efficient PIM v2 Data

The EFF document files are related to Efficient PIM. The EFF file is an Efficient PIM v2 Data. EfficientPIM is a full-featured and cross-platform personal information manager that can help you manage your life.

Efficient PIM
Document files
- / -
Efficient PIM v2 Data related extensions:
Unicode Text File
Lotus Wordpro Smartmaster File
XeTeX Extended DVI Document
UniPlot Graph
DYMO Label Template
Ichitaro Document

.eff - EverQuest Effects Data

The EFF game data files are related to EverQuest. The EFF file is an EverQuest Effects Data. EverQuest is a 3D fantasy-themed massively multiplayer online role-playing game (MMORPG).

Game Data files
- / -
EverQuest Effects Data related extensions:
EverQuest Game Data
EverQuest Game Data
EverQuest 3D Model Data
EverQuest Texture Cache

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

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

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

dff, ebf, ecf, edf, eef, ef, efb, efc, efd, efe, efg, efr, eft, efv, egf

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Dataplore Wavelet Filter
Efficient Diary v2 Document
Gravis UltraSound Sound Bank Data
ENVI Vector Data
FRAMES Water Flux File
Microsoft Outlook Extension Configuration File

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

DataTypes.net >> EFF file