issue with cangrow

hi forum

i have problem with cangrow?. i have two fields like Vehicle id and CUSIP. Vehicle ID is having multiple lines of data(can grow filed) where as CUSIP has only one line. when i export this report into excel,. Cusip column contains rows accoroding to the VehicleID. how to set increase the height of cusip according to the CanGrow field.

please tell me