How to write Excel files in C#

Description :

Today we look at how to write to an Excel file. We open an existing file, modify it, and then save it as a new file. We also cover writing a single value and storing values in an array to write to the file. I recommend using a master template style opening, editing, and saving design pattern, which allows you to design a complicated Excel file and then add data to it. Enjoy this deep dive into writing to Excel files using C#.