I have csv file with contents below
heading1,heading2,
Name1,Name2,
If I select name in heading1, that value should be updated in CSV file.
   <select id="heading1" >  
         <option value="">Select</option>
         <option value="Nmae1">Nmae1</option>
         <option value="Nmae2">Nmae2</option>
    </select>
<select id="heading1" >  
     <option value="">Select</option>
     <option value="Nmae1">Nmae1</option>
     <option value="Nmae2">Nmae2</option>
</select>
 
    