Table with an array of 1 causes problem

[evanslify]

t.substitute(1, {
    titles: ['title1', 'title2'],
    planData: [
        { name: 'A', role: ['role1'] },
        { name: 'B', role: ['role2'] }
    ]
});

With a input like this

Would result a file which excel would complain upon opening. This is due to duplicate element inside sheet1.xml.

    <row ht="14" r="2" spans="1:7" x14ac:dyDescent="0.2">
      <c r="A2" t="s">
        <v>6</v>
      </c>
      <c r="B2" s="6" t="s">
        <v>8</v>
      </c>
      <c r="B2" s="6" t="s">
        <v>3</v>
      </c>
    </row>

[evanslify]

Please see https://github.com/evanslify/xlsx-template/commit/796b7f1c4a76d618fa26b4b452b22b14fd35d51f

I have added a test to fail.

[evanslify]

I have monkey-patched to prevent this double-insertion of cells, but a better way of fixing it could be of use.

[evanslify]

After 6 months. Ping. @optilude @kant2002

[kant2002]

@evanslify sorry for missing this. If you made PR, I review and very likely accept it.