Files that contain the .hds file extension are most commonly associated with Windows Media Digital Rights Management files.
Windows Media Digital Rights Management is a platform that allows for the protection and secure transmission of a user's media files. The DRM files allow for the protected content to be played on computers, networks and portable devices without a compromise of security.
Hierarchical data systems also use the .hds file suffix. These HDS files contain the data files that are used by the hierarchical data system. For example, the XMap software application uses the .hds file extension for the hierarchical data files used by the program.
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If you have additional information about the HDS file format or software that uses files with the HDS suffix, please do get in touch - we would love hearing from you.