This solution applies to external Excel files, not to the QuickTest Professional data table.
You can use the Excel object model to automate setting the font and cell color in an Excel worksheet.
Example:
' Create the Excel object
Set ExcelObj = CreateObject("Excel.Application")
ExcelObj.Visible = true
' Open up the Excel file which has the rows or columns to be hidden.
ExcelObj.Workbooks.Open "C:\temp\Book1.xls"
' Get the first sheet
Set NewSheet = ExcelObj.Sheets.Item(1)
' Loop through the first 3 rows
for i = 1 to 3
' Capture the value in the cell
value = NewSheet.Cells(i,1)
msgbox value ' Change the font color
NewSheet.Cells(i,1).Font.Color = RGB(0, 255, 0) 'Font color ' Change the cell color
NewSheet.Cells(i,1).Interior.Color = RGB(0, 0, 0) 'Background color
Next
' Save the Excel file
ExcelObj.ActiveWorkbook.Save
' Close the application and clear the object reference
ExcelObj.Quit
Set ExcelObj = Nothing