Spire.XLS 15.11.3 Excel から JSON への変換をサポート

Workbook workbook = new Workbook();
            workbook.LoadFromFile(inputFile);
            Worksheet sheet = workbook.Worksheets[0];
            string mathML = sheet.Equations[0].ExportMathML();
            sheet.Range["B9"].Value = "mathML:";
            sheet.Range["B10"].Value = mathML;
            string LaTex = sheet.Equations[0].ExportLaTex();
            sheet.Range["B12"].Value = "LaTeX:";
            sheet.Range["B13"].Value = LaTex;
            workbook.SaveToFile(outputFile);            
			File.WriteAllText(outputFile_TXT, "LaTeX:\t" + LaTex + "\r\nmathML:\t" + mathML);

Workbook workbook = new Workbook();
          workbook.LoadFromFile(@"test.xlsx");
          Worksheet sheet = workbook.Worksheets[0];
          sheet.Range["C4"].Formula = "=XMATCH(\"王五\", A2:A5)";
          workbook.CalculateAllValue();

XlsRange range = sheet.Range["A1"]；
range.InsertEmbedCheckBox();
rang.SetEmbedCheckBoxCheckState(true);

Workbook workbook = new Workbook();
workbook.LoadFromFile(inputFile);
workbook.SaveToFile(outputFile, FileFormat.Json);
workbook.Dispose();

Workbook workbook = new Workbook();
 workbook.LoadFromFile(inputFile);
 Worksheet sheet = workbook.Worksheets[0];
 Stream image = File.OpenRead(inputFile_Img);
 sheet.PageSetup.BackgoundImageStream = image;
 workbook.SaveToFile(outputFile, ExcelVersion.Version2013);