Final answer:
The statement is True. The Format Cells window of spreadsheet programs like Microsoft Excel offers thousands of font and fill colors for customization.
Step-by-step explanation:
The statement is True. In the Format Cells window of spreadsheet programs like Microsoft Excel, there are indeed thousands of font and fill colors available. This allows users to customize the appearance of their data, making it more visually engaging and easier to interpret. With such a wide range of color options, users can choose colors that best suit their needs and preferences.