We use Box to store company documents, and most people prefer to work with the Box files natively on Windows via Box Drive. The issue is when someone wants to circulate a copy of a file stored on box. The standard practice is to drag a copy of the document from Windows Explorer to an Outlook email. This results in a copy of the document, so future collaborators are not editing the Box document, but rather a copy.

This is a common feature in most established DMS products, where the user is asked if they want to upload the actual file or instead, a link to the file so that when the recipient opens the attachment, they are directed to the file on the server, not the copy of the document in the email.