The sender encrypted this Relay transfer before it entered the live transfer. The preferred path is PhotonFile Desktop for encrypted Relay downloads.
Use the richer native desktop app for encrypted Relay downloads and frequent receive workflows. Download desktop app.
If you stay in the web app, open this link using a Chrome or Edge desktop browser to decrypt and download it.
For future encrypted exchanges that should not depend on this Relay browser fallback, ask the sender to use Photon Vault, which is built for persistent client-side encrypted storage, sharing, and Vault Intake workflows.