I'm not sure if it is possible natively, but you could eventually implement an automation that takes the XLS file in the filesystem and adds that to the Confluence page as an attachment, and repeats it in every N minutes. That'd definitely work.
ScriptRunner should be able to do this.
Thanks everyone for answering last week’s question. The winner of the random drawing from those who commented is: @LarryBrock I’ll contact you separately with your prize details. This wee...
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