A daily updated filename extension database!

Details of the .hdru file extension

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

  • What is the .hdru file?
  • What program do I need to open a .hdru file?
  • How can the .hdru file be opened, edited or printed?
  • Where can I find the specifications for .hdru?
  • Which MIME-type is associated with the .hdru extension?
  • How can I convert .hdru files to another format?
  • What are other, similar filename extensions to .hdru?

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

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

.hdru file extension details

Apollo HDRU Image

Apollo HDRU Image .hdru file icon
HDRU file is an Apollo HDRU Image.
HDRU format description not yet available
Category: Graphic files
Application: XnView
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
HDRU aliases:
gn, hdr
HDRU related links:
HDRU related extensions:

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

.hdru file converters

.hdru converters

The following softwares are capable of converting .hdru files to other formats:


For example, using the softwares above, a .hdru file can be converted into one of the following formats:

$s, 2bp, 2d, 3fr, 411, 4bt, 73i, 82i, 83i, 85i, 86i, 89i, 92i, a64, abs
.hdru file extension error

The .hdru file extension is often given incorrectly!

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

hdr, dru, hru

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Microsoft IIS NNTP Header Data
Mail.dat Header File
DataFlex Database Header
HDRi Image
EAGLE Design Rules File
Apollo HDRU Image
open .hdru file

Can't open a .hdru 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 .hdru file association, check the FAQ.

.hdru file extension

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 .hdru file extension, write to us!

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