MacOS – Where is system.log located? (In the filesystem, outside of Console.app)

I believe that airdrop transfers directly into your downloads folder. Should anything happen to interrupt the transfer, you will likely end up with a file called "transferred_file.txt.download", the file is renamed to remove the .download upon completion. If you have any .download files sitting there and not changing in size, they are failed downloads and can potentially be restarted (if they originated from Safari), or removed.

You can test this by transferring a new large file, and watching the file get created, increase in size, then get renamed.

Download Alfred 2. It is an excellent application that allows for a streamlined search of your computer's files, and it also allows has other uses such as opening other applications or webpages. It shows you the location of the file that you're accessing, so for example if you type "chrome" it will show the option of opening Chrome in its application location.

A useful shortcut is "apple click" which then opens up the location of the file.