Generating returns when dealing with multiple tax rates, and more than the number of rows provided in the template

The number of rows provided in return form sheet generated in excel template for rate-wise turnover is limited. Hence, if you are dealing with multiple tax rates, provide rate-wise turnover in 11 rows. Beyond the 11th row, calculate the weighted average of remaining rates and total assessable value of those rates and enter in Rate column and Turnover column, respectively.