DERF file format description

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

1 filename extension(s) found in our database.

.derf - Dungeon Bot Engine Room Data

The DERF game data files are related to Dungeon Bot Engine. The DERF file is a Dungeon Bot Engine Room Data. Dungeon Bot Engine is the back-end engine for the Dungeon Bot. Dungeon Bot is a dungeon crawling RPG game.

Dungeon Bot Engine
Game Data files
- / -
Dungeon Bot Engine Room Data related extensions:
Microsoft Flight Simulator Panels Data
Ricochet Infinity DirectX Sequence
Heroes of Might and Magic IV Map
Panda3D Pzip Compressed File
Mugen Character Commands Data
Pokemon: Battle Revolution Data

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

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

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

def, der, drf, erf

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Delta Force Weapon Profile Data
SmartWare Definition Data
MicroEMACS Registry Data
PC Draft v4 Drawing
Certificate File
Doom 3 Map Definition Data

Operating systems 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 .derf file format, then write to us! >> DERF file