NexusBV supports an extensive list of formats: .asc , .bdv , .brd (including Toptest/Landrex/Mentor/Allegro variants), .bv , .bvr , .cad , .fz , .gr , .pcb , and .tvw . For HP ProBook 4540s .fz files, it handles them without extra configuration.
If you are diving into motherboard-level repair on this specific HP laptop, keep these workflow tips in mind: hp probook 4540s boardview portable
With a portable boardview executable: