.FZM File Extension
What is an FZM file?
An FZM file is a module file created and used by Fritzing, an open-source application used to design electronic circuits. It stores information that describes a collection of parts that function as one unit in Fritzing.
Modules are made up of two or more parts that a user has connected to function as one part inside Fritzing. For a collection of unconnected parts, Fritzing uses the .FZB bin file.