Is there a file explorer with a tree structure browser

[konan]

I  have just installer Linux lite - 'really like it except the file explorer that comes with it doesn't have a convenient tree structure in a left pane, like that of Windows Explorer.
Is there one that I can download and install on Linux Lite?  I see Konqueror has this but it says it is for KDE. I don't believe L-Lite is KDE. Is this right, or could I use Konqueror?

Thanks!!