When I started using Microsoft Excel, my spreadsheets were a mess, and I wasted hours trying to make them look professional.

Learn how Excel functions can act as data using LAMBDA, LET, and BYROW, so you reuse logic and cut formula edits.

Inserting and customizing the timeline chart . It's now time to insert a line chart, which you'll adapt into a timeline chart ...

Learn advanced filtering in Excel with a criteria area, OR and AND logic, and copy results to isolate the right rows fast.