Tekkengamewin64shippingexe Link -

I should start by verifying if there's a known legitimate file with that name, part of Tecmo Koei or Bandai Namco's distribution. Maybe it's the installer or executable file for the PC version of Tekken, such as Tekken 7. Sometimes, executable files in Windows are named with a pattern like game_name-platform-version.exe, so this might be for the Windows 64-bit version intended for shipping (final release).