how to download the same file with a different name

[bodhamilla]

I was recently downloading a file and accidently clicked cancel about 80% through the file. It was a movie around 700mb, so re-downloading it wasnt an option, since i have capped internet. When i searched for the file again to resume the download, i couldnt find it. With a bit more searching i found that the exact same file was still there, but it had a different file name. Is it possible for me to somehow resume downloading that file to the original file on my computer, so that it resumes from 80%?