GDS.XLSX (nuget): The simplest/easiest way to translate a DataTable into an Excel document (XLSX) - A more advanced setup can be used too if you need more control of the output. - Based on OpenXML from Microsoft - As lightweight as it can be.  This is among the simplest and fastest libraries to convert a DataTable to an Excel Sheet. (And probably also the fastest)
Keywords: Excel|XLSX|OpenXML|Sheet|Workbook