To change the language used by Skype:

1. Sign in to Skype.
2. In the menu bar, click Tools > Change Language.
    
3. Select your preferred language. 

Skype will now use the selected language.

If your language is not available, you can translate Skype into your preferred language:

1. Go to Tools > Change Language > Edit Skype Language File… to view the Language file editor.
   
2. Click on each line of text in the Current column and enter your translation of the original text.
   Note: you do not need to translate the Comment column.
3. Click Save as… and save the language file in the folder: C:\Program Files\Skype\Phone.
4. Click Apply to use the new language file.

To load a language file you have previously saved or downloaded:

1. Click Tools > Change Language > Load Skype Language File…
2. Search for the language file and click Open.
3. Click Apply to use the new language file.

Note: Skype will use the language file you have loaded whenever you sign in to Skype, but it will not appear in the list of supported languages in Tools > Change Language.