how to get 1st column value in spreadsheet Document in mvc

Question

I have created an Open XML document file

in Existing Spreadsheet document open then read the 1st column value in this file.

SpreadsheetDocument spreadsheetDocument =
            SpreadsheetDocument.Open(srcFile, true);
                WorksheetPart newWorksheetPart = spreadsheetDocument.WorkbookPart.AddNewPart<WorksheetPart>();
                newWorksheetPart.Worksheet = new Worksheet(new SheetData());
                WorkbookPart workbookPart = spreadsheetDocument.WorkbookPart;
                Sheets sheets = spreadsheetDocument.WorkbookPart.Workbook.GetFirstChild<Sheets>();
                string relationshipId = spreadsheetDocument.WorkbookPart.GetIdOfPart(newWorksheetPart);
                uint sheetId = 1;

                SheetData sheetData = newWorksheetPart.Worksheet.GetFirstChild<SheetData>();


                IEnumerable<WorksheetPart> worksheetPart = workbookPart.WorksheetParts;
                int rocount=0;
                Sheet sheet = workbookPart.Workbook.Descendants<Sheet>()
                    .Where(s => s.Name == "Survey Details").FirstOrDefault();


                foreach (WorksheetPart WSP in worksheetPart)
                {
                    //find sheet data
                    IEnumerable<SheetData> sheetData1 = WSP.Worksheet.Elements<SheetData>();
                    // Iterate through every sheet inside Excel sheet
                    foreach (SheetData SD in sheetData1)
                    {
                        IEnumerable<Row> row = SD.Elements<Row>(); // Get the row IEnumerator
                        IEnumerable<Column> column = SD.Elements<Column>();
                        var d = column.Count();
                        rocount=(row.Count()); // Will give you the count of rows
                    }
                }

 

 how to read column value in c#