Hi so in the lucky block docs the supported formats are .schematic and .luckystruct

but does it not say it supports .schem the new file that word edit uses to generate structures

and here is a suggestion can you make a tool that converts .schem/.schematic into .luckystruct

It supports this schematic format: https://minecraft.fandom.com/wiki/Schematic_file_format, but the blockstate handling is imperfect and it's only there for compatibility. Minecraft structure blocks introduced the .nbt format which is preferred, and .luckystruct is a custom format similar to drops.txt

ok thank you alexsocha i will change my lucky block structures to .nbt instead to .schematic😊

It supports this schematic format: https://minecraft.fandom.com/wiki/Schematic_file_format, but the blockstate handling is imperfect and it's only there for compatibility. Minecraft structure blocks introduced the .nbt format which is preferred, and .luckystruct is a custom format similar to drops.txt