Uninstalling Skype, possible leftover?

What happens when you try to remove it; and, how do you know it's part of Skype?

If, when you type "Skype", that file appears, it's because that file contains "Skype" inside. It doesn't mean that it's a Skype file (it could be), just that this file contains "Skype" word inside. I think you should leave it as it is. Also, it looks like a protected file that you can't delete unless you do it with root permissions or with Terminal, a dangerous process

Where is the file located on the computer? If it's a preference file it's safe to remove it. But, it may be locked so the easiest thing to try is to restart the computer, then try deleting it.

When you right-click the file, select "Abrir carpeta que lo contiene". This will take you to the folder where this folder is, so maybe we can know if you can delete this file safely

Let me suggest you download and install EasyFind 4.9 which will show you the folder in which a file is installed. Much better tool than Spotlight.

The file does not require you have root permission to delete as it can be easily removed with the Terminal. It's no more dangerous than using a nail clipper.

Where is this folder located, name of folder, and path. For the latter you can CTRL- or RIGHT-click on the folder icon in the Finder's titlebar.

Any possibility this is actually associated with Windows?

Do you run Windows on your Mac either through Boot Camp or virtualization software. I assume by your reply that you don't.

Have you tried using EasyFind as suggested earlier?

Find Any File