using NPOI.HPSF;

using NPOI.HSSF.UserModel;

using NPOI.SS.UserModel;

HSSFWorkbook hssfworkbook = new HSSFWorkbook();//先创建Workbook

ISheet sheet= hssfworkbook.CreateSheet("Sheet1");//创建sheet页

IRow row1=sheet.CreateRow();//创建行

row1.CreateCell().SetCellValue("test");//创建单元格并设置值

FileStream file = new FileStream(sFilePath, FileMode.Create);

 hssfworkbook.Write(file);

 file.Close();

//设置列宽（字符宽度）

sheet.SetColumnWidth(,  * );//第一列，10个字符宽度

//设置行高

row.HeightInPoints = ;//高度（像素）

//设置网格的默认行高和列框

sheet.DefaultColumnWidth=*;

sheet.DefaultRowHeightInPoints = ;

//设置单元格样式 

//样式创建

            ICellStyle style = hssfworkbook.CreateCellStyle();

            style.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Center;//文字横向居中

            style.VerticalAlignment = VerticalAlignment.Center;//文字纵向居中

            IFont font = hssfworkbook.CreateFont();//字体

            font.FontHeight =  * ;

            style.SetFont(font);

            ICell cell = row.Cells[];//获取单元格对象

            cell.CellStyle = style;//绑定样式

//单元格合并

sheet.AddMergedRegion(new NPOI.SS.Util.CellRangeAddress(,,,));//合拼了A1到I1

 //设置文件的详细信息

            DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation();

            dsi.Company = "公司名称";//公司

            SummaryInformation si = PropertySetFactory.CreateSummaryInformation();

            si.Subject = "主题";//主题

            hssfworkbook.DocumentSummaryInformation = dsi;

            hssfworkbook.SummaryInformation = si;

//根据路径获取读取xls文件
HSSFWorkbook wb = new HSSFWorkbook(new FileStream(@"C:\Users\Yc\Desktop\text.xls", FileMode.Open));

//获取sheet对象

ISheet sheet1 = wb.GetSheet("Sheet1");
//获取行
IRow row = sheet1.GetRow(0);
//获取单元格
ICell cell = row1.GetCell(0);