Both .cdr and .bpt files are graphics files from CorelDRAW and although these formats are used for a bit different purpose, it is nonetheless possible to export one to another or vice versa. But you will definitely need CorelDRAW for this, so if you do not have access to the software, you will need to find someone who does. It is unlikely any kind of cdr to bpt converter exists.
Updated: September 21, 2023