https://mygeodata.cloud/converter/plt-to-gml
PLT to GML Converter Online | MyGeodata Cloud
MyGeodata Converter - Convert PLT to GML in just a few clicks. Transformation of GIS/CAD data to various formats and coordinate systems, like SHP, KML, KMZ,...
to gmlpltconverteronlinecloud
https://www.igismap.com/tag/shp-to-gml/?amp
shp to GML Archives -
to gmlshparchives