If typing in Microsoft Excel on your ASUS Vivobook X1504 results in the letter "o" being entered instead of the intended characters, it could be due to a few reasons:
1. **Sticky Keys/Accessibility Features**: Check if Sticky Keys or any other accessibility features are enabled. You can find these settings in the Control Panel or the Settings app.
2. **Keyboard Layout**: Make sure your keyboard layout is set correctly. Sometimes, it can switch