(JavaScript/jQuery): Create dynamically anchor tag and simulate click on that anchor tag automatically.

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var link = document.createElement('a');
          link.href = 'data:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;base64,' + response.data;
          link.download = "report" + GetCurrentDate() + ".xlsx";
          //Firefox requires the link to be in the body
          document.body.appendChild(link);
          //simulate click
          link.click();
          //remove the link when done
          document.body.removeChild(link);

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var GetCurrentDate = function () {
      var today = new Date();
      var dd = today.getDate();
      var mm = today.getMonth() + 1; //January is 0!
      var yyyy = today.getFullYear();
      today = yyyy + '-' + mm + '-' + dd;
      return today;
    };

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//quarter = 2018.4, output = FY18 Q4
var GetFormattedQuarter = function (quarter) {
      if (quarter) {
        return String(quarter).replace(/^..(..).(.)$/, 'FY$1 Q$2');
      }
    };

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