Notes about the TRL 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 TRL file type is primarily associated with 'Topocad' by Chaos Systems AB. Topocad is a CAD system developed for surveying calculations, COGO, transformation and for mapping, design and GIS connectivity.