I accidentally formatted an XCSD card and after attempting to recover the data on my own eventually figured that using Recuva would be my best hope at retreival. The files were indeed found and I was able to save them to my C drive but no matter which media player I attempt to open and view them with they are not playable and no specific reason is given beyond that maybe a certain codec is missing or that the input isn't accepted but, again, without saying exactly why.
For reference, the files were originally captured in the XAVC S HD format, recorded on a Sony FDR-AX33 Handycam and my home computer system is a Microsoft Surface Pro 6.
Any thoughts and suggestions are greatly appreciated.