I use code:
Aspose.Words.Tables.Cell wordCell = wordDocBuilder.InsertCell();<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />
wordCell.CellFormat.Borders[Aspose.Words.BorderType.Bottom].LineWidth = 2.5;
wordCell.CellFormat.Borders[Aspose.Words.BorderType.Bottom].LineStyle = LineStyle.Hairline;
Aspose.Words.Tables.Cell wordCell1 = wordDocBuilder.InsertCell();
wordCell1.CellFormat.Borders[Aspose.Words.BorderType.Bottom].LineWidth = 2.5;
wordCell1.CellFormat.Borders[Aspose.Words.BorderType.Bottom].LineStyle = LineStyle.Single;
But result is the same: the Hair line is still invisible.
I am attaching created word file.
Thank you!