How to send jar files via bluetooth

The sending device we kind of can't use quick share, the device is the pixel fold gen 1, the device we are sending TO is a device without quick share or any internet service (so we cant really use those), and the file is a jar file, we don't have the cable for wired connection, it doesn't have wifi and we don't have a sim card (so we cant use the internet), and we cant really rename files because the file manager doesn't let me rename the extension so we cant use the file.jar.txt rename trick