LXT

LXT stands for interLaced eXtensible Trace and is a dumpfile format designed for use with GTKWave. It is natively generated by Verilog simulators such as Icarus Verilog and VeriWell. LXT2 files are accessed via a well-defined reader and writer API. For LXT, only a writer API is available so conversion from LXT back into another format requires the use of the GTKWave dumpfile export function.

Related links:

1. LXT Explained [1]