Localization

I have a problem with Lingua.
In my project the built language is english.

After exporting the localizable values, opening the exported file with Lingua, translate the strings to the other language (german),
saving that file within Lingua I want to reimport that file to my xojo project.
If I choose ‘Export’ in Lingua, a windows open where I should be able to select the application for this localization - but all files are greyed out,
I’m unable to select any file.

What I’m doing wrong?
The User guide gives me no answers.

Thank’s for any help.
Peter

drag the lingua file back onto the project to reimport it

Thank you.
I was misreading the User Guide.