It looks like it belongs to some software recently installed. Right click on the file. Then choose Properties from the context menu. Depending on your OS, go to the tab labeled Details, or any other tab that gives you info about the ownership of the file. Let's see if that tells anything about what uses/created this file.
One other thing you can do is add .bak to the end of the file, i.e., change the name so that it is now named is-GLDPO.exe.bak . Use your system normally, and let's see what crashes or stops when looking for that file to execute. Once we know what is looking for the file, we'll know what it is doing there and what created it. Since we effectively "disappeared" the file by adding a non-executable extension, if anything needs it, we'll know. And, it is simple to change back the extension once we know it is legitimate.