allitems_1.17-1.17.1.zip is a release file of the Minecraft data pack The Ultimate Item Toolkit [1.13-26.3], made for Minecraft 1.17.1, 1.17, 1.17-Snapshot. It was published on June 26, 2026 and is 0 MB in size. For the full description, screenshots and every other version, visit the The Ultimate Item Toolkit [1.13-26.3] data pack page.
How to install: Put the .zip into the datapacks folder of your world (.minecraft/saves/<world>/datapacks) and run /reload. No mods needed.