The file is a compressed archive. It must be extracted to reveal a .bin file, which is the actual binary code the TV's processor reads.
Updating this type of TV involves a "USB forced flash" because the TV usually cannot boot into a menu to select an update. Download LE40B8000 MSOV590 18275 rar
This likely refers to a specific build number or internal versioning code. Installation Process (Standard V59 Procedure) The file is a compressed archive