What are Guest Users in salesforce?

<div data-md="61"><div aria-level="3" role="heading" data-attrid="wa:/description" data-hveid="CA8QGg">Guest Users are users who can only access files and folders shared with them. Guest users do not have their own home storage. Hence, guest users cannot create their own folders or upload files directly to the root of the account.The recipient can use the username and password to login to web portal or native clients.

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