John Peberdy

I think documentation should be further improved to remove sanitize as a documented option - people see it and copy and paste and it works well enough for the issue...

Here's my workaround, inspired by `insertRows` ``` import Excel = require('exceljs') export function insertColumns (worksheet: Excel.Worksheet, pos: number, values: object[][], style = 'n'): void { worksheet.spliceColumns(pos, 0, ...values) if (style...