ExFAT (Extended File Allocation Table) is a file system developed by Microsoft designed for flash drives and external storage devices. It supports large files over 4 GB and is compatible with various operating systems, including Windows and macOS. This makes it ideal for transferring files like videos and high-resolution images. Unlike older file systems like FAT32, ExFAT allows for larger storage capacities and improved performance. It is particularly useful for devices such as SD cards and USB drives, enabling seamless data sharing across different platforms without the limitations of traditional file systems.