See
http://www.rondebruin.nl/id.htm
IFERROR Returns a value you specify if a formula evaluates to an error; otherwise, returns the result of the formula
SUMIFS Adds the cells in a range that meet multiple criteria
AVERAGEIF Returns the average (arithmetic mean) of all the cells in a range that meet a given criteria.
AVERAGEIFS Returns the average (arithmetic mean) of all cells that meet multiple criteria.
COUNTIFS Counts the number of cells within a range that meet multiple criteria
Cube functions
CUBEKPIMEMBER Returns a key performance indicator (KPI) property and displays the KPI name in the cell.
CUBEMEMBER Returns a member or tuple from the cube. Use to validate that the member or tuple exists in the cube.
CUBEMEMBERPROPERTY Returns the value of a member property from the cube.
CUBERANKEDMEMBER Returns the nth, or ranked, member in a set.
CUBESET Defines a calculated set of members or tuples by sending a set expression to the cube on the server, which creates the set,
and then returns that set to Microsoft Office Excel.
CUBESETCOUNT Returns the number of items in a set.
CUBEVALUE Returns an aggregated value from the cube.
Or see Excel help