How do I find the files app on my ipad

The Files app looks like a blue colored file folder.

If running the latest iPadOS 15 version/s, If you cannot find this app anywhere on any of the main Home screens , swipe through all your Home screen until you see the App Library cluster of icons.

Look to see if the Files spp icon is in there, someplace.

You can drag this icon out of the Appl Library section and place it whereever you like.

Best of Luck to You!