Excel for Monkeys

Adds all numbers in a range of cells.

=SUM(A1:A10) → adds values in cells A1 through A10

Returns one value when a condition is true, another when false.

=IF(A1>100,"High","Low")

Looks up a value in the first column of a table and returns a value from another column.

=VLOOKUP(A2, Sheet2!A:D, 4, FALSE)

Modern replacement for VLOOKUP/HLOOKUP — searches a range and returns matching values.

=XLOOKUP(A2, B:B, C:C, "Not found")

Counts cells in a range that meet a single condition.

=COUNTIF(A:A, ">100")

Sums cells in a range that meet a single condition.

=SUMIF(A:A, ">100", B:B)

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