HTML 5 - download and run/execute a file

Question

Does HTML 5 provide a way to run or execute a downloaded file? I've read about the File API to download files but haven't seen mention of how to execute it. It's probably frowned upon due to security concerns, but sometimes there's good reason to do this. To mitigate security issues, signed files could be required as a consideration for future enhancements of HTML5.

Answer 1

No, there is no way to download and automatically execute a file with HTML5.