pip install nbtlib python converter.py --input old_schematic.schem --output new_build.litematic Here is the one thing nobody tells you: Version differences .
If your converter doesn't map these correctly, you'll load your hologram and see a bunch of "Stone" or "Air." Always check your converter's version setting (1.12.2 vs 1.16+ vs 1.20+). Don't let file formats stop you from building your dream Survival base. Converting a .schematic to a .litematic takes 30 seconds and saves you hours of block-counting headaches. Schematic File To Litematica Converter
If you have a library of old builds, running a Python script via mca-selector or nbtlib will automate the process. pip install nbtlib python converter