Origin Ver. 8.5.0 and Service Release 1 (Operating System: Win 7 x64) Impasc x-function with options.ImpMode:=3 gives error “Invalid data range” when used in the empty Origin Project. I have expected that options.ImpMode:=3 would create a new workbook anyway but it seems to be true only when at least one workbook is present in the Project. I wonder if it is supposed to work like this.