How do I extract this .zip file now that i have tried to open it with another program?

try winrar

If you have tried to use the wrong program to open the file and told windows to always use this program to open the file which is what I think you are saying. All you need to do to re-associate the correct program with the file type is to, Click once on the file to select it(do not double click). Now while holding down the shift key right click and select the open with option when the next dialog pops up, click on winzip, click on the always use this program box at the bottom and the file should open as it used to. If win zip isn't in the choice you will need to browse to the directory where winzip is installed and select the .exe file. and then select always use....

if you have Win XP you can attempt to restore the correct file association for zip files: go to start>run, type REGSVR32 ZIPFLDR.DLL If that does not help, another command may be required to change the .ZIP association. Type in Start, Run: cmd /c assoc .zip=CompressedFolder For Vista, follow instructions here http://www.winhelponline.com/articles/105/1/File-association-fixes-for-Windows-Vista.html I've found the easiest way to extract files is to use ExtractNow - free here (it seems to work with Vista too) http://www.snapfiles.com/reviews/ExtractNow/extractnow.html

that program should work to open it.. go to eagle software, and that should give you what you need, though only for a 30 day trial.. good luck.

um to unzip it once you download the file hit open folder highlight it then click extract all then move it back to the original folder it should be unzipped

Winzip should've already came on your computer. Did you delete or something? And unextract? Why would you need to unxtract? You could try winRAR! I guess.