The latest version has a search functionality and is downloadable at https://sourceforge.net/projects/android-file-search/files/Google_Play_Store_Version/
A new version has been uploaded. Filename is "filesearch4.apk". This new version allows to delete files, rename files, delete directories, rename directories, and view text files when the file extension is : txt, xml, htm, html, xsl, xslt, text, ascii, ini, asp, aspx, java, kt, cs, js, jsp, php, bat, css, csv, kml, svg (feel free to ask for more file extensions, that should be a setting in the application in the future). Also, you can force a text read of any file by a long click on a file and then by clicking on "Open as text".... read more
New version uploaded. Filename is "filesearch3.apk". This new version now starts browsing from the internal storage of the Android device ("/storage/emulated/0") so you can browse your data file (pictures, alarms, documents, downloads, movies, music, ringtones...). This version also allows you to view the first 1024 bytes of any clicked file in hex format.
This version allows to browse the Android filesystem (no need to be a rooted device).
The previous version allowed to view the files and directories that were at the root of the device.
Now, a click on a folder opens it.