Sometimes, files are mislabeled during download. Check if the file should actually be an .fzz file. Try renaming the extension from .fz to .fzz and see if Fritzing can parse the archive. 2. File Corruption
Fritzing loads the XML data within the FZ file to reconstruct breadboard views, schematic views, and PCB traces. 2. General Text Editors (Notepad++, VS Code) fz file viewer
Now you can confidently master any FZ file that comes your way. Sometimes, files are mislabeled during download