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).
The application 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 if it is not a text file.