What is .MTA file extension?
File created by Samsung AllShare, a program used for sharing multimedia files between PCs, TVs, mobile phones, and other network ready DLNA devices; referred to as a "chapter" file since it contains indexing information for navigating through the multimedia files.
MTA files are automatically generated by Samsung AllShare when a multimedia file is used. They are created in the same directory as each source multimedia file and use the naming convention file.avi.mta, where the source file is named file.avi.
You can see a list of software programs here on easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.