The file is typically associated with competitive gaming modifications, specifically for Minecraft PVP (Player vs. Player) communities or private server builds. This archive usually contains a "client" or a set of performance-enhancing mods designed to give players a competitive edge through improved framerates and specialized interface tools. What’s Inside 1.5.5-PVP.rar?

Restart your game launcher and select the new 1.5.5-PVP profile.

: Low-fire textures, clear water, and short swords designed to increase visibility in the heat of battle.

If it is a Minecraft modpack, move the folder into your .minecraft/versions directory.