Webform working with csv file but not excel in drupal 7


Searched a bit, found some questions with csv files and excel, but didn´t worked out for me.
I can download both csv and excel, and the csv file works fine, but my xlsx file is comming up with weird characters.
Here is my setup.

And when i open it in xlsx.
It shows these characters.
enter image description here

im using Unicode UTF-8.
Any suggestions what the problem could be?

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