Please follow the below steps:
- Download & open POEDIT software.
- Click on Create New Translation.
- In the plugin, you have a lang folder. You can find the .pot file in it. Import the file.
- It will ask you for the translation language. Select it as Germany.
- In the top navigation bar, Click on Update >> Save.
- Do the translations and Save them.
- Select the WordPress site language as the same you selected in the software. ( Germany )