This is a blank 1 second PAPER.WAV sound file (16bit, mono, 22050Hz).

Place it in the /override folder to remove/disable the paper rustling tooltip opening sound that happens whenever you hover your mouse over something clickable. The original rustling sound can become incredibly distracting and headache-inducing after a few hours.

This file works for BG2, BG2 EE, Icewind Dale EE, and possibly all Infinity Engine games that use the same sound effect.