Communicate Changes to Excel View
Customers make use of the "Excel view" in for reports in the Library to automated some of their own reporting. They may have created macros and/or templates to automate extraction of data from specific sheets and cells within downloaded Excel files. When formatting changes are made to the Excel files that breaks the automation.
Customers understand it often becomes necessary to make formatting changes to the Excel view of reports in the Library. However, such changes must be communicated to customers in advance of the change.