.SISX.DM File

The sisx.dm file extension is associated with Nokia smart phones with Symbian operating system.

The sisx.dm file contains program executable data protected by digital rights management. Protected programs are downloaded from Nokia (Ovi) Store.

To remove DRM protection, open the .sisx.dm file in editor and delete first four lines of text and remove dm part from file extension.

This sisx.dm file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

Files with sisx.dm file extension can be found as special DRM protected installation packages for Nokia phones based on Symbian.

How to open:

These files are used to install app on Symbian devices (Nokia).

How to convert:

As far as we know, this .sisx.dm 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.