The .nmdcdcid file extension is used for a settings file format, which is also known as a configuration or theme file format. Also known as MP3 player settings files, these NMDCDCID files were used to store configurations and settings of some old and outdated MP3 players. These .nmdcdcid files are now obsolete as of this writing.These NMDCDCID files contain settings like customizations that have been done to MP3 player skins, playback functions and other related features of the MP3 player. These .nmdcdcid files are updated by the MP3 player when a new customization has been done to its current settings.As of this writing, there are no known programs that can be used to open and edit the content of these .nmdcdcid files. There are also no known tools that can convert these NMDCDCID files into more standard MP3 player settings and configuration file formats.
Unfortunately we have not received enough suggestions for software that can open NMDSDCID files yet.
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If you have additional information about the NMDSDCID file format or software that uses files with the NMDSDCID suffix, please do get in touch - we would love hearing from you.