According to Piriform official website, Recuva is able to help recover deleted files from EXFAT. However if it did not help for your case when your exfat memory card such as large cf card, you may try some other alternatives instead.
Popularity of exfat: As we know, exfat is the file system that was used on large memory card, usb stick over 32GB. Many camera users prefer to use compactflash card on their cameras to record video clips, or take images; this happens to phone users too who are fond of taking images and record videos in their life or for travel.
Here are the steps you may follow to recover images, videos from exfat cf/sd/usb with Recuva.
Video - how to use Recuva
If Recuva is unable to scan your exfat drive/card, here are some possible causes and fixes.
If Recuva failed for your exfat drive or card recovery, you may use the following tool that can help restore large files, images, videos with its RAW DRIVE RECOVERY in the software, which is specialized for large file recovery.