Spire.XLS支持将Excel工作表转换为常见的图片格式, 如JPEG, PNG, BMP, WMF, EMF 和TIFF等。当Excel工作表中含有Excel图表时，Spire.XLS也支持仅将excel图表保存为图片格式。下面将介绍如何使用Spire.XLS将 Excel 工作表 和Excel图表保存为图片格式。

Excel工作表转图片

//初始化workbook实例
Workbook workbook = new Workbook();

//加载Excel文档
workbook.LoadFromFile("Sample.xlsx");

//获取第一个工作表
Worksheet sheet = workbook.Worksheets[0];

//将工作表保存为图片
sheet.SaveToImage("ExceltoImage.png", ImageFormat.Png);

Dim workbook As New Workbook()
workbook.LoadFromFile("Sample.xlsx")
Dim sheet As Worksheet = workbook.Worksheets(0)
sheet.SaveToImage("ExceltoImage.png", ImageFormat.Png)

Excel工作表中的图表转图片

//初始化workbook实例
Workbook workbook = new Workbook();

//加载Excel文档
workbook.LoadFromFile("Sample.xlsx");

/获取第一个工作表
Worksheet sheet = workbook.Worksheets[0];

//将图表保存为图片
Image[] imgs = workbook.SaveChartAsImage(sheet);

for (int i = 0; i < imgs.Length; i++)
{
    imgs[i].Save(string.Format("img-{0}.png", i), ImageFormat.Png);
}

Dim workbook As New Workbook()
workbook.LoadFromFile("Sample.xlsx")
Dim sheet As Worksheet = workbook.Worksheets(0)

Dim imgs As Image() = workbook.SaveChartAsImage(sheet)

For i As Integer = 0 To imgs.Length - 1
	imgs(i).Save(String.Format("img-{0}.png", i), ImageFormat.Png)
Next

Excel工作表中的两个图表存为两张图片：