So, I have an odd question. I'm on a MacBook, running OSX (whatever the latest version is...I think Snow Leopard). I downloaded an attachment from an email, and it was an excel spreadsheet for the newest version of Office, which I don't have. So I saved the file to my desktop, and then opened it. It automatically opened with Numbers. Apparently two files were downloaded, and I threw away/erased one file...but the other one (named "feb10 overnight for rds.xlsx.download") is apparently undeleteable. I can't move it to the trash, I can't re-name it, I can't move it to another folder. It's just stuck there, on my desktop. Immovable. I can't even open it, either. Has this ever happened to anybody? How would one go about deleting an undeletable file?