How to simply export a Worksheet to xlsx?

Hello, I hope this doesn’t send a blast email to everyone. I apologize if it does… I am out of luck and have been Googling this question for a long time and I hope it is okay to ask here:

1. How would one export a worksheet to xlsx using SheetJS?
2. The excel sheet would be formatted and then would save on the clients end?

Example: Using SheetJS, how would I take this Sheet (array of objects):

var ws = XLSX.utils.json_to_sheet([{"name":"John"}, {"city":"Seattle"}]);

and store it in an excel sheet with name and city as header and John and Seattle as the row data?

Thanks in advance.

• Brian

[SheetJSDev]

There are two issues:

1. each object is mapped to a row, so if you want a row with name “John” and city “Seattle”, you should combine in one object. For example, here are 3 people:

var data = [
    {"name":"John", "city": "Seattle"},
    {"name":"Mike", "city": "Los Angeles"},
    {"name":"Zach", "city": "New York"}
];

1. ws is a worksheet there, you need to make a workbook from it. The simplest way is with:

var wb = XLSX.utils.book_new();
XLSX.utils.book_append_sheet(wb, ws, "WorksheetName");

https://jsfiddle.net/uxnf00z8/ is a complete example for the web browser, starting from the same data and ultimately triggering a download. The library is loaded as an external reference, and the saveAs function is defined in the FileSaver external reference

https://runkit.com/sheetjs/59c5c7dd804721001214aa74 is a complete example of generating an XLSX if you are using node or webpack (you’ll see a “Download ZIP” at the end, download and rename to “output.xlsx” to see the data – this is unfortunately a runkit limitation)

/* external references:
 - https://rawgit.com/SheetJS/js-xlsx/master/dist/xlsx.full.min.js
*/
/* original data */
var data = [
    {"name":"John", "city": "Seattle"},
    {"name":"Mike", "city": "Los Angeles"},
    {"name":"Zach", "city": "New York"}
];

/* this line is only needed if you are not adding a script tag reference */
if(typeof XLSX == 'undefined') XLSX = require('xlsx');

/* make the worksheet */
var ws = XLSX.utils.json_to_sheet(data);

/* add to workbook */
var wb = XLSX.utils.book_new();
XLSX.utils.book_append_sheet(wb, ws, "People");

/* generate an XLSX file */
XLSX.writeFile(wb, "sheetjs.xlsx");

[F-loat]

I think these methods like XLSX.utils.book_new() and XLSX.utils.book_append_sheet() should be list in README.md. Some key method to export a xlsx file but I can’t find them easily.