confluence-csv-export.html

<script type="text/javascript">
// This is a modified version of the script Davin Studer from
// http://iamdav.in/2014/10/24/bookmarklet-creating-csv-html-table/
// I added in a BOM mark to allow for non-english table contents export as well as
// wrapped it in a script snippet to be appended at them end of a confluence page in a html block
function downloadCSVFile(filename, mime, text) {
    if (window.navigator.msSaveOrOpenBlob){
        // IE 10+
        var blob = new Blob([decodeURIComponent(encodeURI(text))], {
            type: 'text/csv;charset=utf-8'
        });
        window.navigator.msSaveBlob(blob, filename);
    } else {
        var pom = document.createElement('a');
        pom.setAttribute('href', 'data:' + mime + ';charset=utf-8,%EF%BB%BF' + encodeURIComponent(text));
        pom.setAttribute('download', filename);
        document.body.appendChild(pom);
        pom.click();
        document.body.removeChild(pom);
    }
}

function addCSVLinks() {
    jQuery('.csvLink').remove();
    
    jQuery('table').each(function(index){
        jQuery(this).attr('data-csvtable', index).before('<a href="#" class="csvLink" data-forcsvtable="' + index + '">Export to CSV</a>');
    });
    
    jQuery('.csvLink').click(function(){
        var text = '';
        var csvTableIndex = jQuery(this).attr('data-forcsvtable');
        jQuery('table[data-csvtable="' + csvTableIndex + '"] tr').each(function(){
            jQuery('td, th', this).each(function(index){
                if(index != 0) {
                    text += ',';
                }
                text += '"' + jQuery(this).text().replace(/\xa0/g,' ').replace(/\r?\n|\r/g, '').replace(/"/g, '""') + '"';
            });
            text += '\r\n';
        });
        jQuery('.csvLink').remove();
        downloadCSVFile('TableExport.csv', 'text/csv', text);
    });
}

addCSVLinks();
</script>

Hello ddikman, do you want to review this pull request?
chku2469/Bookmarklet-to-export-HTML-table-to-CSV#1

It's not a gist anymore but a repository.