The add-in's GUID in the manifest and in every workbook.
Where MJ Explorer runs; the add-in's sign-in window opens its /office/connect page.
How long a connection key lasts.
The most rows the pane writes for one source.
The host's name, shown in Excel and on the connect page.
The store a workbook names for the add-in.
The storeType a workbook names for the add-in.
The add-in's version in the manifest and in every workbook.
The add-in's settings, after validation and defaults.