U3p extension is related to U3 Smart Application. You have chance to open u3p files with Flashdisk software.
It is a mobile disk software that works with U3 driver. This software helps to run this program via flashdisk. It can copy some files to system folder in Windows. Some flashdisks that are produced by the following brands include this software:
What to use u3p
which page related to u3p file
u3p Related Searches
You can check related links about u3p fileextension.