title: Inserting new row / note at the beginning of a sheet during XLSX Export
body: <p>I am new to node.js and I am able to write my data into workbook but I am  facing an issue with inserting a note at the beginning of my data.
  Please note that the data is being fetched from DB but note is static or from session.</p>
  
  <pre><code>var export = XLSX.utils.json_to_sheet(this.obj);
      var wb = XLSX.utils.book_new() // make Workbook of Excel
      // add Worksheet to Workbook    
      XLSX.utils.book_append_sheet(wb, export, 'sheet1') // sheet1 is name of Worksheet  
      XLSX.utils.sheet_add_json(wb.Sheets.sheet1,
        [
          {note: "This is a note"},
        ],
        {
          header: ["note"],
          skipHeader:true,
          origin: "A1"
        }
      );
      // export Excel file
      XLSX.writeFile(wb, 'book.csv') // name of the file is 'book.xlsx'
  </code></pre>
  
  <p>here in the above code I am trying to add note using sheet_add_json but it is overwriting the existing data at A1. Though it works fine when tried with empty cell</p>
  
  <p>Below is expected output in excel format.</p>
  
  <p>This is a Note      </p>
  
  <pre><code>Name    RollNo  Age
  Abc      101    10
  def      102    15
  xyz      103    20
  </code></pre>
  
  <p>But As per the current code I am getting</p>
  
  <pre><code>This is a Note  RollNo  Age
  Abc              101    10
  def              102    15
  xyz              103    20
  </code></pre>