ClosedXML 0.102.1 - NuGet
2023/08/18 ...ClosedXML is a .NET library for reading, manipulating and writing Excel 2007+ (.xlsx, .xlsm) files. It aims to provide an intuitive and user-friendly interface.
https://www.nuget.org/packages/ClosedXML/0.102.1How install the ClosedXML NuGet - Stack Overflow
2019/03/07 ... I suggest installing using the Package Manager Console. You can find this in Tools>Nugget Package Manager >Package Manager Console.
https://stackoverflow.com/questions/55048898/how-install-the-closedxml-nuget【ClosedXML】C#でOfficeのファイルを操作【その１】
2015/05/11 ... ゴールデンウイークが明けて、五月病にかかっている管理人Aです。 それでは、今回から本格的にOfficeファイル.
http://geo-sol.co.jp/tech/it/program/cs/aboutclosedxml1/