Download page clarification
I would suggest that you make it clear on the download page which version of Extplorer is for which version of Joomla.
I recently tried to load 2.1.1 into joomla and it failed to load. However it did set up a directory and some files so that when I tried to upload the correct version I got an error message saying the directory was already being used by another component.
I have had to ask my service provider to delete the directory and hopefully once they have done that everything will work OK.
Maybe the first thing the software installer should do is delete any existing installation - if this is possible.
btw I think this component is fantastic and I'd like to thank you for all your work.