STANDARD used inside a sum
Parse errorThe file could not be read. Nothing is converted until the line is corrected.
What the converter says
STANDARD is the macro's own default and cannot be part of a sum
What triggers it
STANDARD means the macro supplies its own default for that parameter. Only the macro knows what the default is, so there is no number to add, subtract or multiply.
XA="STANDARD+1"How to fix it
Either leave the parameter as STANDARD on its own, or replace it with the value you actually want.