If you want to watch right away, Netflix is testing the 4K streaming waters with select shows (House of Cards, Breaking Bad, The Blacklist) and films (Ghostbusters, The Smurfs 2) if you own a Samsung, Sony or LG 4K TV and have a 25Mbps internet connection.
A PRN file is a special type of file which contains instructions for a printer, it tells the printer what to print on the page and where as well as which paper tray to use, what the paper size is and a number of other controls.
File type specification: Backup file type. File extension trn appears to be mainly associated with Microsoft SQL Server, a relational database server for databases stored in T-SQL and ANSI SQL database formats. A .trn file contains backup of database transaction logs. Transaction logs is used to store information about transactions and database modifications made by each transaction. The default software associated to trn file type: