By default, all software supports multiple file extensions. Minecraft supports at least 13 different file extensions. The basic files that Minecraft supports are .MCMETA. However, not all of the extensions listed on the list are always used to save the effects of work in Minecraft. Very often, files with such extensions are used as source data files used by Minecraft.
Minecraft can be used to convert file formats between the file extensions listed below. You can open a file with one of the file extensions below via Minecraft and try to save it in another file format, also supported by Minecraft.