Not sure where to start with the new Documents for Excel API? Here are the basics, plus a little deeper look into what you can do with charts and pivot tables with no Excel dependency.
Slicers are a newly added feature to Spread.Sheets that gives users the ability to filter their table data in a new way.
Charts are all about the impact that they should leave on the target audience: Did it convey the intended information? Was it actionable? Was it good enough to facilitate key decision-making? One makes minor visual changes in different chart elements (colors, fonts, position, text formats, tooltips) to meet the end goal of having a chart that makes an impact on its audience.
Jumping right into developing with a new API can be daunting. Well, at least if you're me it can. Let's walk through the basics together and get rid of any points of pain. We're going to make a gorgeous XLSX file in code with NO Microsoft Excel dependency! Woot!