An rnc file extension is associated with the RNC ProPack software. An rnc file contains archive.
RNC file extension - RNC ProPack archive
What is rnc file? How to open rnc files?
File type specification:
The rnc file extension is related to the RNC ProPack, some older file compression tool from Rob Northern Computing.
Most likely some old format without support. No further information could be found.
This rnc 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.