Dear Sir,
Hi,
Thanks for your posting and using Aspose.Cells for .NET.
Please use workbook.CalculateFormula() before saving to html format and see if it resolves your problem.
Please download and use the latest version:
Aspose.Cells
for .NET v7.2.2.1
Please see the following code and the output html file.
C#
Workbook workbook = new Workbook();
Worksheet worksheet = workbook.Worksheets[0];
worksheet.Cells[“A1”].PutValue(10);
worksheet.Cells[“A2”].PutValue(20);
worksheet.Cells[“A3”].Formula = “Sum(A1:A2)”;
workbook.CalculateFormula();
workbook.Save(filePath + “.out.html”);
Screenshot: