DERP file format description

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

1 filename extension(s) found in our database.

.derp - Device Environment Replacement Program

The DERP application files are related to DERP. The DERP file is a Device Environment Replacement Program. DERP is a general-purpose, platform-independent installer, written in python with wxpython, that executes .derp XML-based scripts to walk the user step-by-step through a ROM installation.

Application files
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Device Environment Replacement Program related extensions:
Sony Playstation 2 Executable

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

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

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

deep, dep, der, drp, erp, ferp, serp

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Alter Ego Game Archive
Visual Studio Package and Deployment Wizard Dependency File
DReport Document
HAHTsite Project Dependencies Data
IAR System Dependency Data
WinDev Dependency 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

If you find the information on this page useful, please feel free to link to this page.

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