Excel offers many different charts, but for some data, pre-defined charts such as area or line charts seem fine but are inaccurate by definition. For example, changes in prices, invested amounts, or any discrete data happen at some regular or irregular points, but the value remains constant between the points:

During the presentation, you need to attract and retain the audience's attention. Slides that look like a blackboard with charts and diagrams drawn with chalk can help to keep wandering eyes on your presentation.

It is simple as ABC to add one or multiple trendlines in Excel. A bewildering task is to choose the trendline type that best corresponds to the data series and, if needed, format data to create correct trends, forecasts, etc. Excel adds trendlines with the default formatting and values, such as the default value Period = 2 for the Moving Average.

To create an unforgettable presentation, you may use your own funny or otherwise interesting visual accents and some creative elements. You can use different colors, backgrounds, pictures, etc., but standard elements still limit you.

Today there are many different designs of pie charts. This tip is about the modern design of progress smoothed circle pie charts.
See also How to create an Arc length chart in PowerPoint.

The waterfall chart, also known as the cascade chart or bridge chart, shows how each column, whether positive or negative, relates to other columns and how it affects the overall result. In other words, a waterfall chart reflects the change in value under various factors, such as time.

Excel provides very few options for formatting horizontal axis labels. You cannot format different axis labels with different colors or font sizes. Conditional formatting also only works in some cases. You need to implement some tricks to format the horizontal axis, for example:

Span chart, also known as a range graph, floating graph, difference graph, high-low graph, shows dataset ranges between a minimum value and a maximum value:

The distribution of market shares or stocks of the investment portfolio often is illustrated by pie or doughnut charts. The illustration of multi-market shares and multiple investment portfolios calls for different approaches. The Marimekko chart (also known as Mekko chart, or mosaic plot) comes to the rescue.

A revenue the company generates from selling the products or providing the services should cover the fixed costs, variable costs, and leave a contribution margin. The point where the total operating margin (the difference between the price of the product or service and the variable costs per item or customer) covers the fixed costs is called a break-even point.