See the SpreadsheetGear 2023 overview to learn more about the contents of this help.
See Getting Started for recommendations on getting started with SpreadsheetGear 2023.
This help is found on the SpreadsheetGear web site under Support -> Documentation at www.spreadsheetgear.com as of this writing.
SpreadsheetGear 2023 assemblies come with IntelliSense Help (AssemblyName.xml) which works with all supported versions of Visual Studio.