A daily updated filename extension database!

DERP file extension

The table below provides useful information about the .derp file extension. It answers questions such as:

  • What is the .derp file?
  • What program do I need to open a .derp file?
  • How can the .derp file be opened, edited or printed?
  • How can I convert .derp files to another format?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Device Environment Replacement Program

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.
DERP format description not yet available
Application: DERP
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
DERP aliases:
DERP related links:
DERP related extensions:

Other types of files may also use the .derp file extension.

🚫 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?

We found the following similar file extensions in our database:

DReport Document
Commodore Amiga TVPaint Image
Alter Ego Game Archive
Visual Studio Package and Deployment Wizard Dependency File
Serpent Variant Ransomware Encrypted Data
HAHTsite Project Dependencies Data
Draz Paint Bitmap
IAR System Dependency Data
Extensions Manager Preferences Data
Certificate File

🔴 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 cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .derp file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .derp file extension, write to us!

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