It will just translate to the default language you have configured in your specific browser. No matter what language you have selected on the website.

Hello Princess Benido,

To translate "Choose File" and "No file chosen" in Odoo v15 website, you can follow the below steps:

1. Go to your Odoo website backend and navigate to the "Translation" menu under the "Settings" module.

2. Under the "Application Terms" tab, select the "Website" application and search for the text you want to translate (in this case, "Choose File" and "No file chosen").

3. Once you find the text, select the language you want to translate it to and add the translation in the "Translated Terms" column.

4. Save the translation and refresh your website to see the updated text.

If you are unable to find the text in the "Application Terms" tab, you can try searching for it in the "Custom Translations" tab. If it still does not appear, it may be hardcoded in the template or module code, and you will need to update the code to include translations.

I hope this helps. Let me know if you have any other questions!

Ksolves Team!