The document discusses how to create advanced Excel dashboards using REST APIs and IQY connectors to integrate external data. It explains that Excel is commonly used in companies and can be used to share data with stakeholders and format it in different ways. It then describes different types of Excel reports that can be created, from simple to advanced and KPI dashboards. It provides information on REST APIs and how IQY connectors allow Excel to retrieve dynamic data from web services. Finally, it gives an example of a dynamic Excel dashboard created using these techniques.