Modify excel cell

Question

Good morning, I would like to edit some cells from already existing excell file. I tried use EPPlus and normal OpenXml classes. However I failed. In both situation program w

Answer 1

although this is answered I'll add from my experience.

It is easier to open the ExcelPackage from FileInfo instead of Stream, then saving becomes simpler.

FileInfo file = new FileInfo(path);

        using (var package = new ExcelPackage(file))
        {
            ExcelWorkbook workBook = package.Workbook;
            ExcelWorksheet currentWorksheet = workBook.Worksheets.SingleOrDefault(w =>  w.Name == "sheet1");

            int totalRows = currentWorksheet.Dimension.End.Row;
            int totalCols = currentWorksheet.Dimension.End.Column;

            for (int i = 2; i <= totalRows; i++)
            {                   
                try
                {
                    currentWorksheet.Cells[i, 1].Value = "AAA";

                }
                catch (Exception ex)
                {
                    _logger.Error(String.Format("Error: failed editing  excel. See details: {0}", ex));
                    return;
                }
            }

            package.Save();