Often, such files are created to add content, fix bugs, or improve graphics in fan projects or indie games. To give you better info, I need to know:
Follow the on-screen prompts for the anniversary edition update. File: Succulence_Anniversary_EditionVer.2.5.exe...
is this file supposed to do (e.g., is it a game, a patch)? Often, such files are created to add content,
Run a scan with Windows Defender or a reputable third-party antivirus before executing. is it a game
If the file fails to run, it may require .NET Framework or Visual C++ Redistributables to function. What is an "Anniversary Edition" .exe ?