some windowblinds come in a zip file as they may have other elements provided for the blind. if you can open the zip file, with something like winzip, just double click on the wba file and it will self extract. hope this is what your question is about.

okay how do I rename back? like what does that even mean?

A lot of people upload their Windowblinds in a .zip instead of .wba file for various reasons, me included. Just download the .zip, double click on it (you don't need any other software as opening .zip's is built into Windows XP, Vista and Windows 7). Locate the .wba file in the window that opens up and double click on it to install it into Windowblinds, and then apply it. Pretty simple.

 First, kudos for finding and using a proper forum to post to. Lately, everyone wants to post to Support and those guys need their sleep.

Second, get used to opening zips to get to the "good stuff". As LightStar said, many skinners upload as zips to include permissions, walls, docks, etc. The .wba format is great, in that they self-install on download but afaik, it is the only skin to do so. Everything else will self install for the most part by double clicking on its file (like cursors, dreams, Icon Packages, etc.)

Third, a forum post starting with WTF is usually a precursor to a whiny complaint, not a legitimate new user question, as yours is. Stating the nature of your problem in the title will get better responses, imho. (although, as a nosy bunch, we all look anyway, lol)

Fourth.

Don't ever do that!

Lastly, Welcome to WinCustomize, jhoward7414. Have fun, hang out, download 'til your fingers bleed and if you have any more questions, fire away. There is always someone around to help out.  

For walls that match or go with a WB, you can open WB config, go to the Wallpaper tab and drag the downloaded wall into the preview window. It will automatically be placed in C:\Users\Public\Documents\Stardock\WindowBlinds\Wallpapers and show in the list. Then you have easy access to them when changing blinds.

 I just love this feature. (Thanks, Neil!)

 As you may know, the photo gallery is also accessible in WB config, but I like the matching walls to go in the WindowBlinds folder. I only add the ones closest to my resolution and save the rest elsewhere, in case I need them.

My tip of the day...no charge.