Hi ,
When trying to convert a workbook to excel on .NetCore 3.1, I get the following exception :
"Invalid cell name"
Snippet :
foreach (Worksheet worksheet in wookBook.Worksheets)
{
worksheet.PageSetup.Orientation = PageOrientationType.Landscape;
worksheet.PageSetup.PaperSize = PaperSizeType.PaperA4;
}
wookBook.SaveToStream(outputStream, Spire.Xls.FileFormat.PDF);
Kind regards