How do I open files that are not supported by any applications with LG Dynamic?
When you don't have support for the files taken from phone, the only recommended thing is to download the manuals. Access the LG website and download the available manuals. They're in PDF format to easily understand and read the information. Adobe Reader or a compatible PDF reader is required to be installed to open the file.
Official website: http://www.lg.com/us/support-mobile/lg-LGL38C