@Borjanja,
Aspose.Excel is deprecated now and a new product Aspose.Cells has replaced it which supports all the features of Aspose.Excel along with the support for the latest features in different versions of MS Excel. We can work with fonts and its parameters in a variety of ways. Following is an example which demonstrates changing the font color of a cell using Aspose.Cells:
// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
// Create directory if it is not already present.
bool IsExists = System.IO.Directory.Exists(dataDir);
if (!IsExists)
System.IO.Directory.CreateDirectory(dataDir);
// Instantiating a Workbook object
Workbook workbook = new Workbook();
// Adding a new worksheet to the Excel object
int i = workbook.Worksheets.Add();
// Obtaining the reference of the newly added worksheet by passing its sheet index
Worksheet worksheet = workbook.Worksheets[i];
// Accessing the "A1" cell from the worksheet
Aspose.Cells.Cell cell = worksheet.Cells["A1"];
// Adding some value to the "A1" cell
cell.PutValue("Hello Aspose!");
// Obtaining the style of the cell
Style style = cell.GetStyle();
// Setting the font to be underlined
style.Font.Underline = FontUnderlineType.Single;
//Setting the color
style.Font.Color = Color.Blue;
// Applying the style to the cell
cell.SetStyle(style);
// Saving the Excel file
workbook.Save(dataDir + "book1.out.xls", SaveFormat.Excel97To2003);
Here is a detailed article which can be referred while dealing with fonts:
Dealing with Font Settings
You may try the latest free trail version of this product here:
Aspose.Cells for .NET (Latest Version)
You can test different features of this new product by downloading an executable solution here.