Historically, FZZ compression has been linked to scientific computing and medical imaging (such as MRI or CT scan exports) where file sizes can range from hundreds of megabytes to several gigabytes. The "ZZ" in the name often implies a form of run-length or entropy encoding used to shrink massive datasets without losing spatial integrity.
Logic for how traces and wires interact across different views. 3. Current Solutions for Viewing .fzz Files fzz viewer