Office Connector OOM OutOfMemory on Excel file

A customer attached an Excel file to a page and then used normal viewfile markup to display it in a page. This resulted in their Studio instance running OOM and auto-restarting. The customer would reload the page, unknowingly, and their instance kept OOMing and restarting. Studio forces a restart when an app OOMs. In a standalone instance, a normal red error message shows in the page and Confluence goes about it's business as usual.