New line problems when writing files!

Hello!
I'm trying to create a contact-list for import to Outlook. The file is supposed to be tab-separated.

I create it like

//Namn->E-post
stringBuffer.append("Namn");
stringBuffer.append("\t");
stringBuffer.append("E-post");
stringBuffer.append("\n");
for(int i = 0; i < persons.length; i++)
{
    stringBuffer.append(persons[i].firstname);
    stringBuffer.append(" ");
    stringBuffer.append(persons[i].surname);
    stringBuffer.append("\t");
    stringBuffer.append(persons[i].email);
    stringBuffer.append("\n");
}

I write to the file to disk like:

FileWriter fileWriter = new FileWriter(fileName, append);
int length = stringBuffer.toString().length();
fileWriter.write(stringBuffer.toString(), 0, length);
fileWriter.flush();
fileWriter.close();

When I open it in TextPad it looks perfect like:

Namn    Epost
Nisse Berg    nisse.berg@xxx.se
Sven Svensson    sven@xxx.se

But if I open it in notepad everything is on the same row.

If I try to import into Outlook I get an error from Outlook saying that the file is corrupted.

If I view properties of the file in TextPad I can see that the file type is UNIX and not PC like if I had wrote the file my self and saved it.

So now is the question.

Is it possible to tell the FileWriter that this should be a PC-file or should I use some other "New Line"-char other then "\n"?

Best regards
Fredrik