Table2Excel.js

This is a library to export html tables to excel sheets.

Precondition

It has to be a row * column table

Features

1. able to export with width, alignment and colors
2. extendable

Dependencies

ExcelJS

FileSaver.js

Live Demo

Demo

Include table2excel.js

npm

ExcelJS is peer dependency to table2excel.js, so you need to install exceljs first:

npm i exceljs

then, install table2excel.js:

npm i table2excel.js

use in your code like:

import Table2Excel from 'table2excel.js'
new Table2Excel('table').export()

you may also need a config in webpack:

node: { fs: 'empty' }

table2excel.min.js (with ExcelJS packed)

<script src="path/to/table2excel.min.js"></script>

table2excel.core.js (without ExcelJS packed)

<script src="path/to/exceljs.min.js"></script>
<script src="path/to/table2excel.core.js"></script>

Basic Usage

const table2Excel = new Table2Excel(selector, options)  // new Table2Excel('table')
table2Excel.export(fileName, extension) // table2Excel.export('my-exported-table', 'xlsx')

extension can be 'xls' or 'xlsx', default as 'xlsx'

selector

It's optional, and defaulted as 'table'

options

It's optional, and defaulted as:

{
  workbook: {
    views: [{
      x: 0, y: 0, width: 10000, height: 20000,
      firstSheet: 0, activeTab: 1, visibility: 'visible'
    }]
  },
  widthRatio: .14,
  plugins: [
    Table2Excel.plugins.fontPlugin,
    Table2Excel.plugins.fillPlugin,
    Table2Excel.plugins.formPlugin,
    Table2Excel.plugins.alignmentPlugin,
    Table2Excel.plugins.hyperlinkPlugin,
    Table2Excel.plugins.autoWidthPlugin
  ]
}

workbook is options used while creating a workbook, please refer exceljs#create-a-workbook for details.

widthRatio is a ratio that will be used while converting width style of html table cells to width of sheet cells.

Plugins

Plugin helps to extend the ability of transforming table to excel.

Build-in plugins can be access like:

Table2Excel.plugins.fontPlugin,
Table2Excel.plugins.fillPlugin,
Table2Excel.plugins.formPlugin,
Table2Excel.plugins.alignmentPlugin,
Table2Excel.plugins.hyperlinkPlugin,
Table2Excel.plugins.autoWidthPlugin

A plugin can be defined to join different phase of table to excel process, and in different phase, plugin is able to access different objects from context.

{
  /**
   * after an empty workbook created
   * @param  {ExcelJS.Workbook} context.workbook
   * @param  {NodeList} context.tables   
   */
  workbookCreated ({ workbook, tables }) {},
  /**
   * after an empty worksheet created
   * @param  {ExcelJS.Workbook} workbook
   * @param  {NodeList} tables
   * @param  {ExcelJS.Worksheet} worksheet
   * @param  {HTMLTableElement} table
   */
  worksheetCreated ({ workbook, tables, worksheet, table }) {},
  /**
   * after a worksheet been filled with data from table
   * @param  {ExcelJS.Workbook} workbook
   * @param  {NodeList} tables
   * @param  {ExcelJS.Worksheet} worksheet
   * @param  {HTMLTableElement} table
   */
  worksheetCompleted ({ workbook, tables, worksheet, table }) {},
  /**
   * after an cell of worksheet created
   * @param  {ExcelJS.Workbook} workbook
   * @param  {NodeList} tables
   * @param  {ExcelJS.Worksheet} worksheet
   * @param  {HTMLTableElement} table
   * @param  {ExcelJS.Cell} workcell
   * @param  {HTMLTableCellElement} cell
   * @param  {colRange} [from, to]
   * @param  {rowRange} [from, to]
   */
  workcellCreated ({ workbook, tables, worksheet, table, workcell, cell, cellStyle, colRange, rowRange }) {}
}

Example 1, you can define a plugin to make some rows or columns hidden of exported excel:

const table2Excel = new Table2Excel('table', {
  plugins: [{
    worksheetCompleted ({ workbook, tables, worksheet, table }) {
      worksheet.getRow(1).hidden = true
      worksheet.getColumn(1).hidden = true
    }
  }]
})

Example 2, you can add your customized cell parser for your table:

const table2Excel = new Table2Excel('table', {
  plugins: [{
    workcellCreated ({ workbook, tables, worksheet, table, workcell, cell, cellStyle, rowRange, colRange }) {
      workcell.value = { text: '', link: '' }
      workcell.style = {
        ...workcell.style,
        font: {},
        color: {}
      }
    }
  }]
})