can`t open recovered images and text files are auto encoded to ANSII

Hi, after scan, when i check image files i can see that they are 100% healthy and not rewrited , but after recover i cant open any of images: "...because file is damaged, corupted or too large". Some sugestions?

And i accidentaly deleted some programming script files .js and after recovery theyr encoding is ANSII but they originaly were utf8, so everithing is unreadable, is there some way to save these files as utf8?