ExcelReader

This is a lightweight Excel Reader using DocumentFormat.OpenXml. It just does one thing: Read the content of a cell and return it as a string.

The main method ReadCell just requires:

• The reference to the spreadsheet (either by the path of the Excel file or using directly a SpreadSheet from DocumentFormat.OpenXml.Spreadsheet;
• The number of the worksheet where the cell is
• The number of the row
• The name of the column