I have resaved the workbook (.Xls → .Xls) with Aspose.Cells and the result is opened in Protected View by MS Excel. The original workbook opens without any warnings.
I attached the workbook.
Code sample:
var wb = new …...xls → .xls) with Aspose.Cells and the...Workbook(inputFile); wb.Save(“workbook.xls”); I use Aspose.Cells.dll 25...