This lets you more easily reuse excel formulas (within a spreadsheet) without enabling VBA or extension modules, which is a big boon from a security standpoint.

This lets you more easily reuse excel formulas (within a spreadsheet) without enabling VBA or extension modules, which is a big boon from a security standpoint. Given the existing wonkiness of the excel formula programming model, anyone who already had a grasp of actual tables and array formulas (which to be fair, is already a small subset of excel formula users) will be able to pick up these pretty easily.