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

Note that including the UTF-8 BOM is not necessarily a good idea - Mac versions of Excel ignore it and will actually display the BOM as ASCII… three nasty characters at the start of the first field in your spreadsheet…