Image Converter .NET Plugin สําหรับ Excel

dotnet add package Aspose.Cells

using Aspose.Cells;

public class ExcelLoader
{
    public static Workbook Load(string filePath)
    {
        // Load an existing Excel workbook from a file path
        return new Workbook(filePath);
    }
}

Worksheet sheet = workbook.Worksheets[0];
ImageOrPrintOptions options = new ImageOrPrintOptions { ImageType = ImageType.Png, OnePagePerSheet = true, Resolution = 200 };
SheetRender renderer = new SheetRender(sheet, options);
for (int i = 0; i < renderer.PageCount; i++)
{
    renderer.ToImage(i, $"sheet_page_{i + 1}.png");
}

ImageOrPrintOptions options = new ImageOrPrintOptions { ImageType = ImageType.Jpeg };
WorkbookRender render = new WorkbookRender(workbook, options);
render.ToImage(0, "workbook_render.jpg");

Workbook wb = new Workbook("ChartSheet.xlsx");
Worksheet chartSheet = wb.Worksheets[0];
ImageOrPrintOptions chartOptions = new ImageOrPrintOptions { ImageType = ImageType.Png };
SheetRender chartRender = new SheetRender(chartSheet, chartOptions);
chartRender.ToImage(0, "chart.png");

Workbook wb = new Workbook("Data.xlsx");
Range range = wb.Worksheets[0].Cells.CreateRange("A1:C10");
ImageOrPrintOptions rangeOptions = new ImageOrPrintOptions { ImageType = ImageType.Png };
SheetRender rangeRender = new SheetRender(wb.Worksheets[0], rangeOptions);
rangeRender.ToImage(0, "range_output.png");

Workbook wb = new Workbook("PivotData.xlsx");
ImageOrPrintOptions options = new ImageOrPrintOptions { ImageType = ImageType.Png };
SheetRender pivotRender = new SheetRender(wb.Worksheets[0], options);
pivotRender.ToImage(0, "pivot_table.png");