A daily updated filename extension database!

RRU file extension

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

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

Table of Contents

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

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

✅ Ricoh Printer Firmware Update

RRU file is a Ricoh Printer Firmware Update.
RRU format description not yet available
Category: Other files
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
RRU aliases:
RRU related links:
RRU related extensions:

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

🚫 The .rru file extension is often given incorrectly!

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

dru, fru, gru, reu, rfu, rgu, rr, rrh, rri, rrk, rtu, ru, rur, tru

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

FXpansion GURU Preset
EAGLE Design Rules File
Java Russian Font Properties Data
ISO Disk Image with Rock Ridge Extension
RUR-PLE Solution
BlackBerry Resource Header
True BASIC Source Code
RealWorld Raster Image
C64 REU Image

🔴 Can't open a .rru 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 .rru 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 .rru file extension, write to us!

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