ATT-Alt-Ores-Addon.zip is a release file of the Minecraft resource pack Also Try Terraria! - Alternate Ores Add-on, made for Minecraft 1.17, 1.17-Snapshot. It was published on June 6, 2021 and is 0.1 MB in size. For the full description, screenshots and every other version, visit the Also Try Terraria! - Alternate Ores Add-on resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.