Up until yesterday I was able to read imported .txt files with the resident File Manager. The files were imported over USB direct to the root directory of the internal SD card via copy-paste. Now it won't open the files, giving an error saying "open file failed".
I didn't knowingly change anything. There's no way to uninstall the file manager, no way to update it, it's embedded in the tablet which is really frustrating. I deleted and imported the files again and still get the same error. I called Asus tech support and they weren't able to help other than tell me to download another file manager. I downloaded Tetra Free but it comes back with a text box asking me "Open with" but no options are displayed.
I'd really like to use the resident File Manager. Any ideas out there what I can do?