Serialize Excel Data to JSON Object in C#. Add the reference to Microsoft Excel XX.X Object Library, located in the COM tab of the Reference Manager to manipulate Microsoft Excel files: using Excel = ...

Syncfusion® Excel (XlsIO) library is a .NET Excel library that allows the user to export data to Excel in C# and VB.NET from various data sources like data tables, arrays, collections of objects, ...

C# also lets us create what’s called value objects, a special type of object used in domain-driven design that allows us to articulate domain concepts simply, clearly, and concisely.

You can use a custom object mapper to handle the mapping logic between different systems and data structures, primarily for types that have differing property names.

In the C# 3.0 version, targetRange.Columns[1, Type.Missing] returns object, and that's why the casting to Excel.Range is necessary. But in C# 4 and Visual Studio 2010 such calls are silently converted ...

That actually makes copying the data a bigger problem: You now have data that is guaranteed to be identical taking up twice as much space as necessary. But, in C# 9, you can just create a record and ...