Notes about the TDX 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 TDX file type is primarily associated with 'DIAdem' by National Instruments Corporation. DIAdem is software for managing, analyzing, and reporting data collected during data acquisition and/or generated during simulations. This bulk data file is associated with an XML control file with the extension .TDM.