导出为 CSV 时的编码问题

我有这段代码来导出过滤的html表。我有两个问题，我无法弄清楚：
1）我在导出的.csv文件中得到"•"而不是项目符号•。我尝试在元头和这个脚本中将字符集从 UTF-8 更改为 iso-8859，但这没有帮助。
2）当我在句子中有引号时，它会将其视为逗号并打破句子，将其放入下一个单元格。例：
我是一个有良好声誉的"好"人会被
分解成这样的东西：

A1 我是一个"好"人
B1良好口碑

我无法弄清楚为什么会发生这种情况？
谢谢！

<script type='text/javascript'>//<![CDATA[ 
        $(function(){
            $('#downloadButton').click(function () {
        var keepOnlyA1= true                        // put this true to remove unused numeric A0 field from each row   [ A0, A1=[field,field,...]]
                                            //
            var a= tf_table1.GetFilteredData(true)              // a=  [  [A0,A1=[field,field,...]], [A0,A1=[field,field,...]], ...[..,[...]] ]
                                            //        ^a[0]                      ^a[1]                         ^a[n]
            for (var i=0,row,r1; i<a.length; i++){              //
                row=  a[i]                      //  row=  [A0, A1=[field,field,...]]
                r1= row[1]                      //                ^r1
                for (var j=0; j<r1.length; j++){            // surround each field with quotes "field"
                     r1[j]= '"'+r1[j].replace('"','""')+'"'     // if there is any " already inside field string, it needs to be doubled.  per csv rfc.
                }                           //
                if (keepOnlyA1) a[i]= r1                // if true, just replace each row array with its single interior A1=[field,field,...] array
            }                               //
            var colvals = a.join("'r'n") +"'r'n"                //
                var blob = new Blob([ colvals ], {type: 'text/csv;charset=ISO-8859;'});
                //var filename = $('#fileName').val();
                if (window.navigator.msSaveOrOpenBlob) {
                    window.navigator.msSaveOrOpenBlob(blob, "S7_Won_Tendes_Export_Filtered.csv"); 
                }
                else {
                    var a = document.createElement('a');
                    a.download = filename;
                    a.href = window.URL.createObjectURL(blob);
                        a.style.display= "none"             //added//  invisible
                        document.body.appendChild(a)            //added//  firefox wouldn't click() it without being appended
                    a.click();
                    //if (a.remove) a.remove();
                        a.parentNode.removeChild(a)         //added//
                }
            });
        });//]]>  
    </script>