A daily updated filename extension database!

HDH file extension

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

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

✅ FM-ONE Host Side Bootcontrol Data

HDH file is a FM-ONE Host Side Bootcontrol Data. FM-ONE is a flash programmer device developed by Hokuto Denshi Co. Ltd.
HDH format description not yet available
Category: Data files
Application: FM-ONE
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
HDH aliases:
HDH related links:
HDH related extensions:
FM-ONE User Data

FM-ONE Parameters Data

FM-ONE Target Protocol Data

FM-ONE Target Write-in Control Data

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

🚫 The .hdh file extension is often given incorrectly!

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

bdh, dh, gdh, hch, hd, hdb, hdg, hdm, hdt, hdu, hh, hhd, hsh, hxh, mdh

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Microsoft IIS Metabase Hash File
Microsoft Windows Catalog Search Index Hash
Microsoft Surface Calibration Hash
HAHTsite Client-side Image Map Project
C++ Header File
Sony Playstation 2 SCEI Instrument Set Data
Silk Performer Script
FM-ONE User Data
Maple Help Database

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

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