Flat Anvil Sandler_converted.zip is a release file of the Minecraft resource pack Anvil Sandler, made for Minecraft 1.16.5. It was published on March 11, 2023 and is 0.8 MB in size. For the full description, screenshots and every other version, visit the Anvil Sandler resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.