How to get started with Droid Explorer

I've downloaded de.zip and unpacked it, although it came up with an error about something wrong with the header. Now I have a folder with lots of things, but I have no clue how to get this app started. It doesn't look like a Windows program. I have no experience installing something on other platforms. Which platform is it meant for? Can someone please send me a link with installation info for that platform? Keen to get started investigating the contents of a backup.ab file. Many thanks!