Convert cache to mp3?

I bought a new cell phone and want to transfer music (min. 100) from my old cell phone to the new one. I used the Itube app to download music and it saves it in cache form. So when I search for mp3 files in the folder to move them to my SD card, I only find the cache files. Is there any way to get an mp3 file out of the cache file? Mobile phone: Huawei y6 2019 and Samsung Galaxy J5 2016

Are you sure that these are really cache files? Somehow that doesn't seem right to me.

I also have such a "Sammy J5" (you also have Android Nougat, right?) … And all my music (no matter if mp3, wav, ect.) Is found normally either in the internal memory in one of the folders such as « Music »or« mp3 »or« download ». From there I can copy or move them to any folder on the SD card, which I can freely name as I like.

You can easily move your files "freely after snout" if you install an ingenious file manager app called «TotalCommander» on the device. It originally comes from normal computers and works just as well and reliably on all androids.

If you hold the cell phone across, you have two parallel windows in which you can see the internal memory of your cell phone with all the subfolders - and right next to it you can see everything that can be found on your SD card. Now you can easily exchange all possible files (e.g. Your music pieces) between the memories (from card to new device… Or vice versa) simply by drag & drop. Yes, you can even transfer your pieces of music - once you have found them - to the other device via Bluetooth, if you like.

Simply search with «TotalCommander» in the folder tree for a folder that has something with "Itube" in its name… I myself use e.g. Instead, an app called Peggo, which has nested itself as a subfolder on the path "/ storage / emulated / 0 / Music / Peggo". There you can find all my songs that I downloaded using this app.

From there I can easily transfer them to my music collection on the SD card or even store them on USB sticks (as well as my photos, videos and PDFs).