How can I download Facebook app with iOS 13.4

Akoji128 wrote:

how can i download Facebook app with iOS 13.4

Your device needs to be on ios 13.4 or higher to download the app.

How can I get the file

There is no "file" to get. The only place you can download apps is from the App Store. But, you need to have a phone that is capable of running a newer version of iOS.