IFont fontFind = null;
fontFind = workbook.CreateFont();
fontFind.FontName = "MS UI Gothic";
fontFind.FontHeightInPoints = 12;
if (fontFind != null)
{
HSSFPatriarch patriarch = (HSSFPatriarch)sheet.CreateDrawingPatriarch();
HSSFClientAnchor anchor = new HSSFClientAnchor(70, 10, 0, 0, 1, 0, 2, 0 + 1);
string text = "name";
text = text.Replace("name", Convert.ToChar(0x2460).ToString());
HSSFRichTextString hSSFRichTextString = new HSSFRichTextString(text);
hSSFRichTextString.ApplyFont(fontFind);
sheet.GetRow(0).GetCell(0).SetCellValue(hSSFRichTextString);
}