Citiram:
Follow these simple steps to browse the Web in your language, in older versions of Opera.
Choose the language you prefer from the table below. We recommend that you use the newest version of each file available. (Look at the version number).
Right-click on the version number and choose "Save target as". Make sure that the filename ends with .lng. Example: ow720_3144fr.lng
Save the language file to the Opera directory on your hard drive, which by default usually is found in: C:\Program Files\Opera.
Go back to "Tools" in Opera and select "Preferences" [or press Alt+p], then select "Languages" from the Preferences box.
Under the section labeled "User Interface language", press the choose button to find your language file.
Press OK to apply your selection.
Desni klik na datoteko, ki ustreza verziji tvoje opere. Izberi "Shrani kot" in pazi, da ima datoteka končnico *.lng.
Datoteko shrani v direktorij, kjer je instalirana opera.
Odpri opero in pojdi pod "tools" ter izberi "Preferences". Potem izberi "Languages".
Pri "User Interface language" klikni na "choose" in pokaži na prej shranjeno datoteko s slovenskim prevodom.
Potrdi zbiro.