Access to files in hiddden .wdmc folder

Hello, a friend is using the ex4 mc and he accidentilly deleted some file (thats what he said. However: ) i found the file within the hidden .wdmc folder after plugging the hard drive into my Tower PC. Now my question… how can i Access files in that folder within mycloud or 'restore ’ them? I have no experience with this System . Trank you dir and help

If it’s in the .wdmc folder, it’s not the original file. At best, it’s just a thumbnail.