If I want to use the open Workbook object to get the fullname of an Excel file after saving it, but that file has been synchronized to OneDrive, I get a \"https\" address in
Easy Fix (early 2019) - For anyone else having this issue:
OneDrive > Settings > Office: - Uncheck 'Use Office applications to sync Office files that I open'
This lets excel save the file in the typical "C:\Users[UserName]\OneDrive..." file format instead of the UNC "https:\" format.