Convert special characters to xml

[seeyou]

Hi.

I am trying to create an ExcelXP worksheet file, in a xml format.
All it seems ok, but if i use special characters, it will be replaced by another characters.

This is an example of a problematic string:
&quot;<Cell><Data ss:Type=&quot;String&quot;>Olá. É só para dizer que não sou de Guimarães</Data></Cell>&quot;

How is the best (fast) way to solve this problem?
Note: In spite of my sample has a little string, I need to replace the special chars on a quite large table, so I can't replace chars one by one (performance is very important).
--- seeyou ---

 

[seeyou]

Ok.

I solved my problem with the XmlTextWriter and the WriteRaw clause.
Now, all it´s perfect.

--- seeyou ---