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R‑Studio can find previous versions of files. It searches for them in the file's current folder and in Extra Found Files .
File versions are searched for using file size. If the size of a files is within 10% of the original filesize, the following conditions are checked:
| 
               Conditions  | 
             
               Legend  | 
            
| 
               File name  | 
             
               N  | 
            
| 
               File extension  | 
             
               E  | 
            
| 
               Recognized file type  | 
             
               T  | 
            
To search for previous file versions,
| 1 | Right-click the file and select Find Previous Versions of the File on the shortcut menu | 
| * | R‑Studio will show the files in the list: | 
This technique can be used to find deleted original files after attacks of file encrypting viruses.