Notes about the CNA file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries
, unused processes and other unfavourable system settings to identify slowdown issues.
The CNA file type is primarily associated with 'Catena' by OpEx Software LLC. Catena is a software package used to analyze and implement process improvements. The Catena data file which has extension .cna is a data file used to store the database used by Catena Software.