NetSuite - Writing A File To Suitelet Response To Directly Download File

Hope you can help. Something which appears so small is bugging the heck out of me!!

All I want to do in SuiteScript 2.0 is directly download a CSV file to the client as soon as I hit the SUBMIT button on a Suitelet. My code downloads to the client, but the content in the file is incorrect.

The following code creates the file (successfully):

    //creating CSV file
    var fileObj = FILEMODULE.create({
        name: 'ThreePLreport.csv',
        fileType: FILEMODULE.Type.CSV,
        contents: contents
    });  

The last snippet of code writes the file to the client side:

   context.response.writeFile(fileObj,true);

Now - when I come to open the file, it looks like this:

When I save the same file on the filing cabinet, it looks correct:

I have tried adding HEADERS to the code, like:

context.response.addHeader({
        name: 'Content-Type:',
        value: 'text/csv' //text/csv
        });
context.response.addHeader({
        name: 'Content-Disposition',
        value: 'attachment; filename="report1.csv"'
        });

This doesn't seem to help in correcting the content inside the CSV file. Still displays the HTML code as you saw above.

Any ideas?

Thanks in advance!

I've done almost exactly this many times. It looks like you are not returning after you write the file. e.g.:

context.response.writeFile({
    file:fileObj,
    isInline:false
});
return;