This document provides shortcuts for common Excel commands and functions. Some key shortcuts include Ctrl + C/Ctrl + X to copy/cut, F2 to edit a cell, Ctrl + Shift + Enter to enter array formulas, Ctrl + R/Ctrl + D to fill cells right or down, Ctrl + 1 to format cells, F5 to go to a specific cell, Ctrl + Home to go to the beginning of the current region, Ctrl + Z/Ctrl + Y/F4 to undo/redo/repeat, Ctrl + W/Ctrl + N/Ctrl + O to close/open a new workbook, and Ctrl + Tab to toggle between open workbooks. The document also lists shortcuts for commands like inserting rows/columns