Excel Sales Line Graphs

I have raw sales data captured across several time periods and I need it transformed into a set of clear, insight-driven line graphs directly inside Excel. My goal is to see trends at a glance—spikes, dips, and steady growth—so the finished charts should be easy to read, fully labeled, and formatted consistently.

Here’s what I need from you:
• Clean-up or re-structure the worksheet only as much as required to feed the charts.
• Build the line graphs in the same workbook, using Excel’s standard chart tools (no external add-ins).
• Apply professional formatting: meaningful titles, legible axis labels, a concise legend, and color choices that make multiple series easy to follow.
• Highlight notable inflection points or outliers if they appear, either with data labels or call-outs.
• Deliver the updated .xlsx file and a quick note (or an added worksheet) explaining any formulas or pivot tables you introduced so I can maintain them later.

As long as the visuals communicate the data’s story clearly, I’m flexible on the exact number of graphs and layout—you can suggest what works best once you see the figures.