Nowadays, most people use PowerPoint to create presentations and graphs for statistical data.
However, sometimes PowerPoint is not enough to give you the full control over statistical data that you need, especially if you need to create complex charts. In addition, it's expensive, as it comes as part of Office but this package is totally free.
The main purpose of TeeChart-Office is to allow you to easily create both basic and complex charts while linking them to the original data. In a few clicks, you can modify and change the chart appearance (for instance from pie chart to bar chart), export charts to their native format, insert image files, print them, share them with others and lots more.
The program offers 17 main chart types with a huge number of customisations options. You can just about anything from labeling your charts to inserting complex mathematical formulas. Some of the more advanced plotting features are only available if you upgrade to the Pro version although you won't need these unless you are designing scientific graphs. You can also easily export graphs and images to another format using a simple wizard.
The look of TeeChart-Office is not exactly great - it looks rather blocky and basic compared to PowerPoint but it's incredibly powerful, customizable and best of all, free.