RIM has struck a licensing deal with Microsoft to use the software giant’s Extended File Allocation Table (exFAT) technology in BlackBerry devices.

exFAT is described as a modern file system that facilitates “large files for audiovisual media and enables seamless data portability and an easy interchange between desktop PCs and other electronic devices.”

RIM didn’t specify on which devices it intended to deploy the technology, though many believe it could be used on the long-awaited new BlackBerry 10 line due next year.

Microsoft claims that exFAT greatly expands the size of files that flash memory devices can handle by five times over previous FAT technology – and also increases the speed with which those files can be accessed.

“Today’s smartphones and tablets require the capacity to display richer images and data than traditional cellular phones,” said Microsoft’s David Kaefer. “This agreement with RIM highlights how a modern file system, such as exFAT can help directly address the specific needs of customers in the mobile industry.”

Financial terms were not disclosed, though Microsoft claims to have entered similar licensing agreements with the likes of Panasonic, SANYO, Sony and Canon.