Welcome
How to add a new Arabic language? For example, there are two Arabic languages, the Syrian language is ar_SY
And the Egyptian Arabic language ar_EG
But I want to add the Algerian Arabic language and translate it, for example, ar_DZ, according to my local language

In oc-content/languages
Copy ar_SY folder and save cooy as ar_DZ
Then go inside index.php and change all (2-3) occurrences of ar_SY to ar_DZ.
Function itself must be renamed as well!
Then go to mail.sql and do the same.
You can also update .po catalogs properties and use correct language name/des - this step is optional.

Do not forget to share with community once done - greatly appreciated by community!

Thank you. I added a new language and shared it with the Osclass community
I will update it and correct errors over time

Awesome