Notes:
  1. The template doc uses tags to fill data from excel file. A tag is a column name contained within double curly braces. Each tag in the template document will be replaced by its corresponding column data. Any space in column name must be replaced by _ in the tag. For example, data from the column "Column 1" will replace the tag "{{Column_1}}".
  2. Column names should be on the 1st row of the excel file
  3. Individual file will be generated for each rows of the excel file with the row number indicated in file name.