: You will typically need to provide an email address to receive a direct download link and installation instructions.
: An email arrives shortly after with the direct download link (pro tip: always check the spam folder if it doesn't appear!).
A: While technically possible, Cadence's terms require each user to accept the EULA via their own download. Share the download link and instructions, not the .exe.
As of 2025-2026, Cadence has transitioned to newer versions (22.1, 23.1, 24.1). However, many legacy and production projects still use the stable 17.4 environment. This guide focuses specifically on obtaining and installing the legacy 17.4 viewer.
(Alternatively, search Google for "Cadence Allegro Free Physical Viewer" and click the official Cadence.com result.)
The Allegro Free Physical Viewer 17.4 can open several native Cadence file types: – Allegro PCB Editor design files .mcm – Allegro Package Designer files .sip – SiP Layout files Why Choose Version 17.4 Over Older Versions?
