This is a late medieval marketplace on a 19x19 footprint at ground level.
However the building is jettied on the upper floors with roof overhang as well.
A simple street layout is also included to give the schematic some context.
The entire footprint of the schematic is 31x31x23.
Lighting is included, Apartments have a bed. Market / Shop stalls are unfurnished.
There are four corner market stalls at ground level
There are 8 shops on the 2nd floor (1st Floor Europe)
There are 4 one bedroom apartments on the top floor.
This schematic was created in 1.16(.4) but could easily be manipulated in Worldedit to replace newer blocks with something older.
That 's odd... I definite uploaded it as a *.schem file using world edit. Minecraft-schematics.com must convert all their uploads into the older format.
However, to answer your question: the only way that I know is to use World Edit to //paste it into a test world (1.13+) and then //copy and //save it again.
The new format will be a schem file.
There are mods/apps that let you go the other way. schem --> schematic, for use with pre-1.13 worlds, but usually not the other way.
on January 18th, 2021 09:06 PM EST Reply