A daily updated filename extension database!

HDD file extension

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

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

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

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

✅ HotDisc Designer Document

HDD file is a HotDisc Designer Document. HotDisc Designer is a cd/dvd label designer software.
HDD format description not yet available
Category: Document files
Application: Iomega HotBurn
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
HDD aliases:
HDD related links:
HDD related extensions:
Nero Cover Designer Document

Nero Cover Designer Import Document

✅ General Hard Disk Image

HDD file is a General Hard Disk Image. Various programs use this extension for hard disk image.
HDD format description not yet available
Category: Disk Image files
Application: UFS Explorer
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
HDD aliases:
HDD related links:
HDD related extensions:
VirtualBox Virtual Disk Image

Virtual Hard Disk Image

General Floppy Disk Image

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

🚫 The .hdd file extension is often given incorrectly!

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

bdd, dd, gdd, hcd, hd, hdc, hde, hdf, hdr, hds, hdv, hdw, hdx, hed, hfd

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Sony Playstation 2 SCEI Instrument Set Data
OMA Download Descriptor
C64 Doodle Image
Grand Theft Auto V Drawable Dictionary Data
YANG Designer Document
Xilinx Microprocessor Driver Description
Quanquest SPSS Questionnaire Definition Data
MacDraft Drawing Document
Notation Composer Midi Device Description
Motion Designer Document

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

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