This mock follows the format of task-based expert exams such as Microsoft's MO-201 (Excel Expert): one workbook, short tasks, a clock. The questions are our own and it isn't an official exam.
Every task is a formula, and several return more than one value (dynamic arrays spill into the cells below). Each has 2 minutes 30 seconds. Read the task for the exact cell, and refer to the input cells in column L rather than typing their values.