.hdi is Hard Disk Image
Key Features: .HDI File Extension
What is an .HDI file?
The hdi file extension is associated with AutoCAD, a 3D CAD modeling software for Microsoft Windows and macOS (OS X) systems, developed by . File contains heidi device interface.
The hdi file stores heidi device interface.
A hdi file extension is related to the Autodesk AutoCAD and used for its heidi device interface.
How to open:This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.
How to convert:As far as we know, this .hdi file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.