Microsoft and Research In Motion (RIM) have signed a patent licensing agreement that gives RIM access to the latest Extended File Allocation Table (exFAT) for certain BlackBerry devices of RIM. exFAT is a modern file system from Microsoft that facilitates large files for audiovisual media and enables data portability and an easy interchange between desktop PCs and other electronic devices.

exFAT improves on its predecessor, the FAT system, and expands the size of files that flash memory devices can handle by five times over previous FAT technology. It also increases the speed with which those files can be accessed.