Microsoft Excel mangles Diacritics in .csv files?

Question

I am programmatically exporting data (using PHP 5.2) into a .csv test file.
Example data: Numéro 1 (note the accented e). The data is utf-8 (

Answer 1

I've found a way to solve the problem. This is a nasty hack but it works: open the doc with Open Office, then save it into any excel format; the resulting .xls or .xlsx will display the accentuated characters.