.dss is a filename extension. It may indicates that the file in question is:

• (most likely) a Digital Speech Standard file.

• a DCC Active Designer file (used by MS Windows screen savers).

• The existence of .DSS files on storage mediums may also be the result of automatic lossy file name conversion of .DS_Store files to e.g. the old FAT 8.3 character file name restrictions.

• Several other lesser known file formats with the extension .DSS exist.

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