Notes about the LPT 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 LPT file type is primarily associated with 'LogPlot/LogView' by RockWare, Inc.. Company-specific vector graphic format for scaled boring logs for the environmental, petroleum, and mining industries.