All, I am having a hard time getting the format I need from a string. From ("|I13.sc_buck_core_2_stps.clk1 - net050") I need ( "|I13" ) but get.... EFInstanceNetsForm->EFListBoxField->value=("| I13.sc_buck_core_2_stps.clk1 - net050") EFprobeinstVar=car(parseString(car(EFInstanceNetsForm->EFListBoxField-[QUOTE] value) "."))[/QUOTE] "|I13" A solution using manipulating the output "|I13" would be fine with me, or using car, cdr, etc... Any and all help would be appreciated! Thank you, Eric