Is it possible to restore a database snapshot from a 64 bit system to a 32 bit one? I would like to perform a restoration test on a snapshot backup of my MariaDB database using a test server running on a 32-bit OS. My production server is a 64-bit system. I would like to know if the architecture of the OS makes a difference to the database files. Both servers are running the same version of MariaDB.
MyISAM [and] InnoDB data and log files are binary-compatible on all
  platforms having the same floating-point number format.


Source.

You can copy freely between those two platforms if you maintain the same vendor and version.

Obviously, the binary executables for 64 bits will not work on 32-bit.