The file appears to be a specific Minecraft world or data conversion package, likely used to bridge progress between game versions 1.9 and 1.14.

: Press Win + R , type %appdata% , navigate to .minecraft , and then open the saves folder.

: Right-click the .zip file and select Extract All or use a tool like 7-Zip. Locate Your Game Saves :

: Drag the extracted folder (ensure you see subfolders like region or DIM1 inside it) into the saves or minecraftWorlds folder.

: While a world can usually be upgraded from 1.9 to 1.14, going backwards is not supported and can corrupt the world.

While there isn't one official "central" post for this exact filename, files named this way are almost always used for or archive transfers . How to Use 1-9_to_1-14.zip