Ultimate_4k_textures_pt4(install).zip -

The file appears to be a specific part of a multi-volume texture pack, likely intended for use in video game modding (such as for Skyrim , Fallout , or Minecraft ) or 3D rendering software.

Details on what was updated in "Part 4" (PT4) specifically. ULTIMATE_4K_Textures_PT4(Install).zip

A list of artists or original sources for the 4K assets. The file appears to be a specific part

Almost all "Ultimate" texture packs include a plain text file containing: ULTIMATE_4K_Textures_PT4(Install).zip