Sorry for your bad experience, as you may have noticed we had a problem with the difficulty of the levels. Most of them were easy and some more tricky. The 2nd level was rushed in the last minutes before submission and I understand the labyrinth may have been too complex. To pass the PC level you have to rename files by double clicking on the extension, renaming it to "txt" and press enter. Thank you so much for your feedback and for playing tho!