<script src="FileSaver.js"></script>
...
<script src="tableexport.js"></script>

$ bower install tableexport.js

$ npm install tableexport

<script src="xlsx.core.js"></script>
<script src="FileSaver.js"></script>
...
<script src="tableexport.js"></script>

<script src="Blob.js"></script>
<script src="FileSaver.js"></script>
...
<script src="tableexport.js"></script>

new TableExport(document.getElementsByTagName("table"));
​
// OR simply
​
TableExport(document.getElementsByTagName("table"));
​
// OR using jQuery
​
$("table").tableExport();

/* Defaults */
TableExport(document.getElementsByTagName("table"), {
  headers: true,                      // (Boolean), display table headers (th or td elements) in the <thead>, (default: true)
  footers: true,                      // (Boolean), display table footers (th or td elements) in the <tfoot>, (default: false)
  formats: ["xlsx", "csv", "txt"],    // (String[]), filetype(s) for the export, (default: ['xlsx', 'csv', 'txt'])
  filename: "id",                     // (id, String), filename for the downloaded file, (default: 'id')
  bootstrap: false,                   // (Boolean), style buttons using bootstrap, (default: true)
  exportButtons: true,                // (Boolean), automatically generate the built-in export buttons for each of the specified formats (default: true)
  position: "bottom",                 // (top, bottom), position of the caption element relative to table, (default: 'bottom')
  ignoreRows: null,                   // (Number, Number[]), row indices to exclude from the exported file(s) (default: null)
  ignoreCols: null,                   // (Number, Number[]), column indices to exclude from the exported file(s) (default: null)
  trimWhitespace: true,               // (Boolean), remove all leading/trailing newlines, spaces, and tabs from cell text in the exported file(s) (default: false)
  RTL: false,                         // (Boolean), set direction of the worksheet to right-to-left (default: false)
  sheetname: "id"                     // (id, String), sheet name for the exported spreadsheet, (default: 'id')
});

/* First, call the `TableExport` constructor and save the return instance to a variable */
var table = TableExport(document.getElementById("export-buttons-table"));

/* get export data */
var exportData = table.getExportData(); // useful for creating custom export buttons, i.e. when (exportButtons: false)
​
/*****************
 ** exportData ***
 *****************
{
    "export-buttons-table": {
        xls: {
            data: "...",
            fileExtension: ".xls",
            filename: "export-buttons-table",
            mimeType: "application/vnd.ms-excel"
        },
        ...
    }
};
*/

var tableId = "export-buttons-table";
var XLS = table.CONSTANTS.FORMAT.XLS;
​
/* get export data (see `getExportData` above) */
var exportDataXLS = table.getExportData()[tableId][XLS];
​
/* get file size (bytes) */
var bytesXLS = table.getFileSize(exportDataXLS.data, exportDataXLS.fileExtension);
​
/**********************************
 ** bytesXLS (file size in bytes)
 **********************************
352
*/

/* update */
table.update({
  filename: "newFile" // pass in a new set of properties
});

/* reset */
table.reset(); // useful for a dynamically altered table

/* remove */
table.remove(); // removes caption and buttons

/**
 * CSS selector or selector[] to exclude/remove cells (<td> or <th>) from the exported file(s).
 * @type {selector|selector[]}
 * @memberof TableExport.prototype
 */
​
// selector
TableExport.prototype.ignoreCSS = ".tableexport-ignore";
​
// selector[]
TableExport.prototype.ignoreCSS = [".tableexport-ignore", ".other-ignore-class"];
​
// OR using jQuery
​
// selector
$.fn.tableExport.ignoreCSS = ".tableexport-ignore";
​
// selector[]
$.fn.tableExport.ignoreCSS = [".tableexport-ignore", ".other-ignore-class"];

/**
 * CSS selector or selector[] to replace cells (<td> or <th>) with an empty string in the exported file(s).
 * @type {selector|selector[]}
 * @memberof TableExport.prototype
 */
​
// selector
TableExport.prototype.emptyCSS = ".tableexport-empty";
​
// selector[]
TableExport.prototype.emptyCSS = [".tableexport-empty", ".other-empty-class"];
​
// OR using jQuery
​
// selector
$.fn.tableExport.emptyCSS = ".tableexport-empty";
​
// selector[]
$.fn.tableExport.emptyCSS = [".tableexport-empty", ".other-empty-class"];

/* default charset encoding (UTF-8) */
TableExport.prototype.charset = "charset=utf-8";
​
/* default `filename` property if "id" attribute is unset */
TableExport.prototype.defaultFilename = "myDownload";
​
/* default class to style buttons when not using Bootstrap or the built-in export buttons, i.e. when (`bootstrap: false` & `exportButtons: true`)  */
TableExport.prototype.defaultButton = "button-default";
​
/* Bootstrap classes used to style and position the export button, i.e. when (`bootstrap: true` & `exportButtons: true`) */
TableExport.prototype.bootstrapConfig = ["btn", "btn-default", "btn-toolbar"];
​
/* row delimeter used in all filetypes */
TableExport.prototype.rowDel = "\r\n";

/**
 * Format-specific configuration (default class, content, mimeType, etc.)
 * @memberof TableExport.prototype
 */
formatConfig: {
    /**
     * XLSX (Open XML spreadsheet) file extension configuration
     * @memberof TableExport.prototype
     */
    xlsx: {
        defaultClass: 'xlsx',
        buttonContent: 'Export to xlsx',
        mimeType: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
        fileExtension: '.xlsx'
    },
    xlsm: {
        defaultClass: 'xlsm',
        buttonContent: 'Export to xlsm',
        mimeType: 'application/vnd.ms-excel.sheet.macroEnabled.main+xml',
        fileExtension: '.xlsm'
    },
    xlsb: {
        defaultClass: 'xlsb',
        buttonContent: 'Export to xlsb',
        mimeType: 'application/vnd.ms-excel.sheet.binary.macroEnabled.main',
        fileExtension: '.xlsb'
    },
    /**
     * XLS (Binary spreadsheet) file extension configuration
     * @memberof TableExport.prototype
     */
    xls: {
        defaultClass: 'xls',
        buttonContent: 'Export to xls',
        separator: '\t',
        mimeType: 'application/vnd.ms-excel',
        fileExtension: '.xls',
        enforceStrictRFC4180: false
    },
    /**
     * CSV (Comma Separated Values) file extension configuration
     * @memberof TableExport.prototype
     */
    csv: {
        defaultClass: 'csv',
        buttonContent: 'Export to csv',
        separator: ',',
        mimeType: 'text/csv',
        fileExtension: '.csv',
        enforceStrictRFC4180: true
    },
    /**
     * TXT (Plain Text) file extension configuration
     * @memberof TableExport.prototype
     */
    txt: {
        defaultClass: 'txt',
        buttonContent: 'Export to txt',
        separator: '  ',
        mimeType: 'text/plain',
        fileExtension: '.txt',
        enforceStrictRFC4180: true
    }
},
​
//////////////////////////////////////////
// Configuration override example
//////////////////////////////////////////
​
/* Change the CSV (Comma Separated Values) `mimeType` to "application/csv" */
TableExport.prototype.formatConfig.xlsx.mimeType = "application/csv"

TableExport(document.getElementsByTagName("table"), {
  bootstrap: true
});