What's Open is a system utility that lets you determine which app is running a file. While using Mac, you probably noticed an error window that states that you can't delete a file because it is open or active.
In my testing of this app, I played an MP3 file on iTunes and then dragged it onto the application. What's Open correctly reported that the file was opened in iTunes, and I was able to kill iTunes from What's Open. iTunes promptly stopped playing the song and then returned an error and quit, which is exactly what I was expecting the app to do.
In short, What's Open is a very useful tool that works quite well at determining what applications are holding your files captive.
Pros
- It works well
- It is easy to use
Cons
- None
This program received 1 award
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