I'd am also looking for a feature like this. My workflow has been
+ Write some scala code that exports data from MongoDB to Excel
+ Load data in Wizard Pro
+ Add some filters, calculated columns, etc.
+ Analyze data, realize I need some new column to make analysis easier
+ Repeat
At a minimum, I'd like to not have to re-create calculated columns and filters when I re-create the Excel. In my case, the data is substantially the same, but sometimes data in a column is tweaked or a new column is added. I suspect you'd need some rule if a new column happened to match a calculated column.
In answer to the "Refresh All" question, I guess if I had multiple sheets linked to the same source file, I want to refresh all related ones.
Come to think of it, it seems like the capability to 'refresh from source' would be useful for database users as well. For example, if I periodically export data from a database to do analysis and answer what-if questions, it would be helpful to not have to re-define a bunch of filters, pivot tables, models, custom-columns, etc.
By the way, this program is awesome - very well done.
-Doug Donohoe