worksheet.Cells[1, 1].Style.HorizontalAlignment = ExcelHorizontalAlignment.Center; //水平居中
worksheet.Cells[1, 1].Style.VerticalAlignment = ExcelVerticalAlignment.Center; //垂直居中
worksheet.Cells[1, 4, 1, 5].Merge = true ; //合并单元格
worksheet.Cells.Style.WrapText = true ; //自动换行
worksheet.Cells[1, 1].Style.Font.Bold = true ; //字体为粗体
worksheet.Cells[1, 1].Style.Font.Color.SetColor(Color.White); //字体颜色
worksheet.Cells[1, 1].Style.Font.Name = "微软雅黑" ; //字体
worksheet.Cells[1, 1].Style.Font.Size = 12; //字体大小
worksheet.Cells[1, 1].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(191, 191, 191)); //设置单元格所有边框
worksheet.Cells[1, 1].Style.Border.Bottom.Style = ExcelBorderStyle.Thin; //单独设置单元格底部边框样式和颜色(上下左右均可分开设置)
worksheet.Cells[1, 1].Style.Border.Bottom.Color.SetColor(Color.FromArgb(191, 191, 191));
worksheet.Cells.Style.ShrinkToFit = true ; //单元格自动适应大小
worksheet.Row(1).Height = 15; //设置行高
worksheet.Row(1).CustomHeight = true ; //自动调整行高
worksheet.Column(1).Width = 15; //设置列宽
worksheet.View.ShowGridLines = false ; //去掉sheet的网格线
worksheet.Cells.Style.Fill.PatternType = ExcelFillStyle.Solid;
worksheet.Cells.Style.Fill.BackgroundColor.SetColor(Color.LightGray); //设置背景色
worksheet.BackgroundImage.Image = Image.FromFile( @"firstbg.jpg" ); //设置背景图片
ExcelPicture picture = worksheet.Drawings.AddPicture( "logo" , Image.FromFile( @"firstbg.jpg" )); //插入图片
picture.SetPosition(100, 100); //设置图片的位置
picture.SetSize(100, 100); //设置图片的大小
ExcelShape shape = worksheet.Drawings.AddShape( "shape" , eShapeStyle.Rect); //插入形状
shape.Font.Color = Color.Red; //设置形状的字体颜色
shape.Font.Size = 15; //字体大小
shape.Font.Bold = true ; //字体粗细
shape.Fill.Style = eFillStyle.NoFill; //设置形状的填充样式
shape.Border.Fill.Style = eFillStyle.NoFill; //边框样式
shape.SetPosition(200, 300); //形状的位置
shape.SetSize(80, 30); //形状的大小
shape.Text = "test" ; //形状的内容
worksheet.Hidden = eWorkSheetHidden.Hidden; //隐藏sheet
worksheet.Column(1).Hidden = true ; //隐藏某一列
worksheet.Row(1).Hidden = true ; //隐藏某一行