By default, when using the geometric search with neutral formats, the search part is converted to STL (The found parts can be any format.)

Geometric Search (3D) -> tabbed page 3D files

Adjusting the conversion to Step in the configuration file psolopt.cfg via key "UseStepFormat" or "StepFormat" does not work.

$CADENAS_USER/psolopt.cfg

Instead, set following entry:

Script: /installClean/iface/catia/VB/V5/Makro_PSOL_PDATAMGR_geosearch.CATSCRIPT

PDMExportFile="STP"

The script converts the part loaded in Catia into the specified format, either to STP or STL.