Opening an HDI File

The HDI file type is primarily associated with HDIutil.

HDI	File extension: HDI
	File type:	disk image

What is an HDI file?

HDI files mostly belong to HDIutil. HDI files are disk image files that hold an exact copy of a disk's data.
They are used in several ways:

PC-98/PC-9801 Disk Images: Many HDI files capture game and system data for older Japanese computers. They act as a container for game disks.

Macintosh Disk Image Files: Some are formatted as Macintosh disk images, useful for mounting or emulating old Mac systems.

Installer/Driver Packages: Certain HDI files store installation data. For example, one type contains Hewlett-Packard plotter driver data used by software such as AutoCAD. More details can be found at the Autodesk website.

Document Archives: Other HDI files are used to archive documents, such as those by LexisNexis. Visit the LexisNexis website for related info.

The file works by replicating the complete structure of a physical disk, including its file system.
Using a specialized mounting tool or emulator (like HDIutil or DiskImageMounter) is necessary to open and view these files.
FilExt.com note: If you encounter an HDI file, use software that supports legacy disk images to access its contents.

How to open HDI files

You need a suitable software like HDIutil to open an HDI file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your HDI file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a HDI file directly in the browser:. Just drag the file onto this browser window and drop it.

Online HDI Text Viewer

Choose your .hdi file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert HDI files:

HDIutil
See the previous paragraphs to learn more about the main application. HDI files are often referred to as HDIutil disk images because this type of file is primarily created or used by this software.
AutoCAD (Heidi Device Interface) by Autodesk, Inc.
Program ID is AutoCADHeidiDeviceInterfaceFile, AutoCADLTHeidiDeviceInterfaceFile
HelloDOC (Medical Software File) by IMAGINE Éditions
HotDocs (Auto-Install File) by Matthew Bender & Company, a member of the LexisNexis Group
The Mime types used with this association are: application/x-hotdocs.

Technical Data for HDI File Extension

File classification:

Disk Image

Program ID:

AutoCADHeidiDeviceInterfaceFile, AutoCADLTHeidiDeviceInterfaceFile

Related files:

dmg, nrg, vhd, vmdk, cue, hdd, hid, hdr, zip, rar, jpg, exe, shx, hpg, pmp, iso, img

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: AutoCADHeidiDeviceInterfaceFile, FileType: AutoCAD Heidi Device Interface File

ProgramID: AutoCADLTHeidiDeviceInterfaceFile, FileType: AutoCAD LT Heidi Device Interface File

an hdi disk image is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with HDI files

Associate the HDI file extension with the correct application.
Update your software that should actually open disk images. Because only the current version supports the latest HDI file format. Search, therefore, e.g. on the manufacturer website after an available HDIutil update.
To make sure that your HDI file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .HDI file online - secure, fast, and no downloads needed.