Read excel file stored in SharePoint Document Library

Question

I have an excel file stored in SharePoint document library. I need to read this excel file and get the data programmatically from the file path

For Example: SharePoint

Answer 1

You can obtain the binary data from SPFile object and then open it in third party library ClosedXML

SPFile file = web.GetFile("http://servername:1000/ExcelDocs//ExcelFile.xlsx");
Stream dataStream = file.OpenBinaryStream();
XLWorkbook workbook = new XLWorkbook(dataStream);

or you can use OpenXML, which is Microsoft SDK.

SPFile file = web.GetFile("http://servername:1000/ExcelDocs//ExcelFile.xlsx");
Stream dataStream = file.OpenBinaryStream();
SpreadsheetDocument document = SpreadsheetDocument.Open(dataStream, false);
Workbook workbook = document.WorkbookPart.Workbook;

Here is the example of using OpenXML