Microsoft Powerpoint is the most  popular software in creating slideshows for business presentations. As most presentations have lot of data to show & produce, charts are quite often used in these slides. The common way to make Powerpoint Charts is Microsoft Graph. You cancreate several types of charts, including line, column, area and pie charts. It is quite easy to make charts in this. You can check out a nice tutorial on adding a Chart to PowerPoint.

But as more websites like www.slideshare.net is emerging the trend of making & uploading corporate presentations is growing. Though Microsoft Graph is a good option but lacks a bit in looks & animations. FusionCharts is launching a Powerpoint Charting add-on called oomfo, the product is still in beta but you can register for a sneak peek  here. The best part of it is the interactive charts & great 3d animations. You can also watch a product screenshots video to see it in action.