VB.NET Excel applications can be built for the .NET Framework, .NET Core and .NET Standard applications, this included support for Windows, Linux, and Mac OS IronXL has been designed and tested across common use cases, including upgrading old XLS files to XLSX, working with live formulas, and importing and exporting data to common formats such as CSV, tab-separated values, JSON, and XML. https://ironsoftware.com/csharp/excel/ More…