The most probable scenario is that "playgtavexe" is a misspelling of "PlayGTAV.exe" – the theoretical executable name for Grand Theft Auto V (GTA V). Here is why:
What you should actually be searching for: playgtavexe
If you are missing this file, verify your game files via Steam (Right-click GTA V > Properties > Local Files > Verify integrity of game files) or the Rockstar Launcher (Settings > GTA V > Verify Integrity). The most probable scenario is that "playgtavexe" is
Once you have the working file, make launching easy: What you should actually be searching for:
If you successfully launched playgtavexe but the game runs at 15 FPS, your hardware is struggling. Here is the definitive low-end setup for GTA V.