//Instantiate a new Workbook
Workbook workbook = new Workbook(dataPath + "workbook.xls");
//Get the first worksheet in the book
Worksheet worksheet = workbook.getWorksheets().get(0);
//Set the tab color
worksheet.setTabColor(Color.getRed());
//Save the Excel file
workbook.save(dataPath + "AsposeColoredTab_Out.xls");
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