Charset And Ecodig Problem

Hi, I have a problem with this extension.

I have the application installed on a hosting, and I assume that it uses Linux.

And I have installed ina another hosting, and I assume it uses windows …

And last on 2 PC’s at work ( windows 7 and Xp)

The problem is that when I download the excel file, on one machine the format is wrong, it looks like the file is saved with another encoding or charset.

What si the correct configuration?

in Apache Server ?

in php ?

in yii ?

I have problems with one hosting and in XP Windows PC.

ON Windows 7 (local PC) and another Hosting, works fine.

Best Regards