Ensure you select the 17.4 version, as it offers the best compatibility with modern "High-Speed" design features.
See the board exactly as the designer intended, including complex via structures , copper pours , and silkscreen details. allegro best free physical viewer 174 download
To verify component placement and orientation on the "pick and place" map. Ensure you select the 17
Navigate to the Cadence PCB Downloads page. Ensure you select the 17.4 version