Files are copied to a flash drive with artifacts?

Question

Windows

The process itself on the laptop opens everything, I copy it to a USB flash drive, I press safe removal, I extract it, I paste it back into the port with the following results: where there are normal images as it should and as on a flash drive and it’s not a flash drive, I tried the other two, through the only working usb port laptop, windows 7

spoiler

here are the files themselves on the github https://github.com/Beginerok/Tropic-Island/ directory "prez from a flash drive" there is what I threw the flash drives back, maybe someone knows how to understand these formats pdf, pptx, zip and others