Problem with Silvaco TCAD to Garfield++

I am working on modeling a silicon diode and electron avalanche simulation and am looking to import electric field maps and geometry profiles generated in Silvaco TCAD (specifically .str structure and .sta files). Looking through Garfield++ implementation, classes like ComponentTcad3d and ComponentTcad2d appear to be explicitly tailored for Synopsys Sentaurus formats (.grd and .dat outputs). Does anyone have a solution for Silvaco to Garfield++ conversion steps?

Thank you.