Use APKPure App
Get Index old version APK for Android
Tha app lets you tag all your files and find them easily.
You can share any type of file to the app from any app you want, and the app will let you give the file a name and a tag. Later on, you can see all your tagged files inside the app, and also see all the files with a tag together.
For easy searching, you can also look for all the files on the basis of their type.