将XLSX.js与base64一起使用

Question

Tried doing

var work = XLSX.readFile("D:\\sched.xls"); //var XLSX = <XLSX>require('xlsx');

But I believe I am having the issues described in this issue.
https://github.com/stephen-hardy/xlsx.js/issues/11

EDIT BEGIN Found that I was actually using a different library then the one that I found the issue listed with.
https://github.com/SheetJS/js-xlsx/issues/135 EDIT END

The workaround is "read file with base64 encoding, then passing it to xlsx does it."

var fileRead = fs.readFileSync("D:\\sched.xls");
var base64 = fileRead.toString('base64');

//The workaround seems to be talking about some xlsx function?
//even .read doesn't seem to be thing based on my typescript binding.
var workbook = XLSX.read(base64); //to use read switch:
//                                 var XLSX = <XLSX>require('xlsx');
//                                 var XLSX = require('xlsx')

So I'm pretty sure I have read in the file using base64 encoding how do I pass that into xlsx.js

Answer 1

You need to use an Excel reader that supports ".xls" format. For example, excel-parser library supports both ".xls" and ".xlsx" formats.

I don't know what library you are using, but given it is called XLSX , I expect it can only parse the modern ".xlsx" format and not the older ".xls" format (and your file has an ".xls" extension).

var excelParser = require('excel-parser');

excelParser.worksheets({
    inFile: 'D:\\sched.xls'
}, function(err, worksheets){
    if(err) {
        console.error(err);
    }

    console.log(worksheets);
});

Would give you the output in a format such as this:

[
  ['ID', 'Name', 'Location'],
  ['1757491', 'Travis', 'Philadelphia'],
  ['75525', 'Steve', 'UK']
]