code-boxx/0-NODE-EXCEL-TABLE.MD

## 0-NODE-EXCEL-TABLE.MD

      
    Raw
  

              0-NODE-EXCEL-TABLE.MD
            
          
    NODEJS SHOW EXCEL IN HTML TABLE

https://code-boxx.com/excel-to-html-table-nodejs/
NOTES


GIST does not allow Excel files. Convert 1-dummy.csv to 1-dummy.xlsx on your own.
Run unpack.bat (Windows) unpack.sh (Linux/Mac). This will automatically:

Create a views folder, move 3-demo.ejs inside.
Install required modules - npm i express ejs xlsx
Start the Express and Peer server - 2-server.js.


Access http://localhost/ in your browser.

LICENSE

Copyright by Code Boxx
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

  
## 1-dummy.csv

          
            Name
            Email

            
              Joa Doe
              joa@doe.com

            
              Job Doe
              job@doe.com

            
              Joe Doe
              joe@doe.com

            
              Jon Doe
              jon@doe.com

            
              Joy Doe
              joy@doe.com

## 2-server.js
// (A) LOAD MODULES
const xlsx = require("xlsx"),
      express = require("express");

// (B) EXPRESS SERVER & EJS
const app = express();
app.set("view engine", "ejs");

// (C) SERVE DEMO PAGE
app.get("/", (req, res) => {
  // (C1) OPEN EXCEL FILE - USE FIRST WORKSHEET
  var workbook = xlsx.readFile("1-dummy.xlsx"),
      worksheet = workbook.Sheets[workbook.SheetNames[0]],
      range = xlsx.utils.decode_range(worksheet["!ref"]);

  // (C2) READ EXCEL INTO OBJECT
  var data = [];
  for (let row=range.s.r; row<=range.e.r; row++) {
    data[row] = [];
    for (let col=range.s.c; col<=range.e.c; col++) {
      let cell = worksheet[xlsx.utils.encode_cell({r:row, c:col})];
      data[row].push(cell.v);
    }
  }

  // (C3) RENDER HTML TEMPLATE
  res.render("3-demo", { data : data });
});

// (D) START!
app.listen(80, () => console.log(`Server running at port 80`));

## 3-demo.ejs
<!DOCTYPE html>
<html>
  <head>
    <title>NodeJS Excel To HTML</title>
    <style>
    * { font-family: Arial, Helvetica, sans-serif; box-sizing: border-box; }
    table { border-collapse: collapse; }
    td { padding: 10px; }
    tr:nth-child(odd) { background: #f2f2f2; }
    </style>
  </head>
  <body>
    <table>
      <% data.forEach(row => { %>
      <tr>
        <% row.forEach(cell => { %>
        <td><%= cell %></td>
        <% }); %>
      </tr>
      <% }); %>
    </table>
  </body>
</html>

## unpack.bat
md views
move 3-demo.ejs views
call npm i express ejs xlsx
node 2-server.js

## unpack.sh
mkdir -m 777 views
mv ./3-demo.ejs ./views
source "npm i express ejs xlsx"
node ./2-server.js
	Name	Email
	Joa Doe	joa@doe.com
	Job Doe	job@doe.com
	Joe Doe	joe@doe.com
	Jon Doe	jon@doe.com
	Joy Doe	joy@doe.com
	// (A) LOAD MODULES
	const xlsx = require("xlsx"),
	express = require("express");

	// (B) EXPRESS SERVER & EJS
	const app = express();
	app.set("view engine", "ejs");

	// (C) SERVE DEMO PAGE
	app.get("/", (req, res) => {
	// (C1) OPEN EXCEL FILE - USE FIRST WORKSHEET
	var workbook = xlsx.readFile("1-dummy.xlsx"),
	worksheet = workbook.Sheets[workbook.SheetNames[0]],
	range = xlsx.utils.decode_range(worksheet["!ref"]);

	// (C2) READ EXCEL INTO OBJECT
	var data = [];
	for (let row=range.s.r; row<=range.e.r; row++) {
	data[row] = [];
	for (let col=range.s.c; col<=range.e.c; col++) {
	let cell = worksheet[xlsx.utils.encode_cell({r:row, c:col})];
	data[row].push(cell.v);
	}
	}

	// (C3) RENDER HTML TEMPLATE
	res.render("3-demo", { data : data });
	});

	// (D) START!
	app.listen(80, () => console.log(`Server running at port 80`));
	<!DOCTYPE html>
	<html>
	<head>
	<title>NodeJS Excel To HTML</title>
	<style>
	* { font-family: Arial, Helvetica, sans-serif; box-sizing: border-box; }
	table { border-collapse: collapse; }
	td { padding: 10px; }
	tr:nth-child(odd) { background: #f2f2f2; }
	</style>
	</head>
	<body>
	<table>
	<% data.forEach(row => { %>
	<tr>
	<% row.forEach(cell => { %>
	<td><%= cell %></td>
	<% }); %>
	</tr>
	<% }); %>
	</table>
	</body>
	</html>
	md views
	move 3-demo.ejs views
	call npm i express ejs xlsx
	node 2-server.js
	mkdir -m 777 views
	mv ./3-demo.ejs ./views
	source "npm i express ejs xlsx"
	node ./2-server.js