Importrange()
Imports data from another collection
Value
Changes text string format to number
Xlookup
=xlookup(lookup value, lookup array, return array, [if not found],[match mode],search mode)
Match mode
0 exact match
-1 exact match, if not found next lower number
+1 exact match, if not found next greater number
2 a wildcard match
Search mode
V lookup
=vlookup(lookup value, range, return column number from beginning selection, false is exact match)
Product(value1,value2)
Value1*value2
Sumproduct
Sumproduct(array1, array2) this multiplies each cell in array 1 by each cell in array 2 and adds it up