conversion from the attached xlsx to pdf takes about 1.5 minutes - that is too long. Used version: Aspose.Cells 17.1.0 and 17.1.1 for .NET 4.0.
var doc = new Aspose.Cells.Workbook(“ColorFill_3D_Cone_Chart_2003.Aspose17.1.1.xlsx”);
Thanks for using Aspose.Cells.
Please download and try the following latest fix
Aspose.Cells for .NET v17.1.6 (.NET 2.0) compiled in .NET Framework 2.0.
Aspose.Cells for .NET v17.1.6 (.NET 4.0) compiled in .NET Framework 4.0.
and let us know your feedback.