ACE and APR formats couldn't be opened in Assembly Browser if you want to save ".ugenedb" into the default folder

When you try to open ACE or APR file you have an option to convert this file to another format. There is a problem on macOS that by default the path to save this file is set to the folder you don't have a permission write to (this is the folder where the original file located).

I think, it's better to have a general solution, which is spread for all Operations Systems. I suggest to do the following: check the permission to write to the directory with the original file. If you have it - write to there. If you don't have it - write to the "Documents" folder (Application settings -> Directories).