If you accidentally deleted files from Olympus digital camera, do not worry, because the files deleted are not erased from camera memory. So a professional data recovery software can still get back lost files from Olympus digital camera.
Here's a useful Olympus camera data recovery tutorial you can follow
How to recover deleted files from Olympus camera
The data recovery software is easy to use. You can recover deleted photos and videos from Olympus digital cameras, such as Olympus om-d e-m10, E-M1 Mark II, E-M1, E-M5 Mark II, E-M10 Mark II, E-M10, PEN-F, E-PL8, E-PL7, E-PL6.
Recover photos from camera
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How to get back deleted photos from digital camera