OxyPlot is a plotting library for .NET. This is the core library including the foundation classes and plot model. To display the plots, you also need to add a platform-specific OxyPlot package that contains a PlotView component.
GemBox.Spreadsheet is a .NET component that enables developers to read, write, convert and print spreadsheet files (XLSX, XLS, ODS, CSV, HTML, PDF or XPS) from their .NET applications using one simple API.
Syncfusion Essential XlsIO is a .NET Standard Excel library that allows to create, read, and edit Excel files in .NET core application without Microsoft Office dependencies.
The blazing-fast DevExtreme HTML5 Data Grid, collection of high-performance data visualization widgets for all your business intelligence needs and a rich library of touch-enabled JavaScript widgets for use in your next web project.