excel Keyboard shortcuts

Excel has many useful keyboard shortcuts. For example, you can press Ctrl+D to copy a cell to
selected cells below it. If you’re a newcomer to Excel — or you just want to improve your efficiency — I urge you to check out the Help system (access the Accessibility main topic and go
from there). Learning these shortcuts is key to becoming proficient in Excel. The Help file has
tables that summarize useful keyboard commands and shortcuts.
And, as I note previously, you can access the Ribbon commands by using the keyboard.