InDesign - How do I unlock when I save my files?

[T.T. Hare]

I am having a problem saving my InDesign presentation onto my desktop. The file reads locked when I try to upload to Professor Maria's folder or if I try to go in from my desktop, I can not. I do not see it in the creative cloud or anywhere. How do I unlock when I save my files?
I guess I somehow locked this and am not clear how unlock?

[Eugene Tyson · Accepted solution]

If the file is still open it won't be able to be moved. As Indesign produces an Hidden lock file called an .idlk file (indesign locked) which prevents it being opened/moved by a user when it's already in use.

Close your file and try again. If it still isn't working, try rebooting.