It helps you manage and resize proprietary files so you aren't forced to buy a larger, expensive proprietary SD card.
Standard computers see R-Link SD cards as having four large "TOMTOM.00x" files rather than a list of maps and folders. R-Link Explorer "mounts" these virtual files so you can: Add Custom POIs: Install third-party points of interest, such as speed camera databases Manage Voices and Icons: r link explorer