[OXO cube]

hi guys 
does any1 know how to reduce an obj file size 

Ford Cortina MK3 by Dape - Thingiverse

i wanted to print the above file 
but it is 157mb in size 
Tinkercad limits imports to 25mb size files 

i have googled it .... but its way over my head
any help would be gratefully received  

thanks in advance 

kev