Internet Explorer中的execCommand使用USC-2 Little Endian编码保存csv文件，如何以UTF-8格式保存？

Question

The execCommand always save the .csv file in USC-2 little indian format, but I want it in UTF-8 format. Also when I change the file name to .txt, the encoding is properly UTF-8. How can I achevie UTF-8 encoding for csv file? I did try to set charset to UTF-8 but it did not work.

var oWin = window.open("about:blank", "_blank");
oWin.document.open("application/csv", "replace");
oWin.document.charset = "utf-8";
oWin.document.write(csvText);
oWin.document.close();
var success = oWin.document.execCommand('SaveAs', true, 'fileName.csv');
oWin.close();
alert(success);

The file is generated with proper contents but the encoding is not UTF-8 and hence excel does not recognize columns and entire row is displayed in single column. Produced file (fileNam.csv):

"Column One","Column Two","Column Three"
"row1 Col1","row1 Col2"
"row2 Col1","row2 Col2","row2 Col3"
"row3 Col1","row3 Col2","row3 Col3"

I want to do this using javascript and specifically for IE. I know that for other browsers the HTML5 download tag can be used.

Answer 1

Here is what was missing, we need to explicitly say what is the separator. The below line should be added before writing to document

csvText = 'sep=,\r\n' + csvText;

AndrewB - Convert HTML table to CSV in jQuery , is the column separator and \\r\\n is row separator. Also, if you are writing this using c/c++, we need to escape \\r\\n as \\r\\n and depending on context use ' or "