Importing a Campaign using Adwords Editor

I see that you can import an account snapshot using the adwords editor (something I have not tried), but I'm wondering if you can import campaigns in other formats...

Is it possible to create a campaign in an excel file and import that?

Let's say I had 5,000 keywords in an Excel file and I wanted to create a campaign containing ad groups for all of them. Is there a way to edit it quickly in Excel and import the excel file into an Adwords Campaign?

funny you ask this as I spent my entire day recreating my kword master list, somehow old one dissapeared .. dont ask, but yes you can create everything in excel and I would suggest doing this always, for example, MSN for some unknown reason has stopped showing all my ads, this is why a master list works, so what did I do? I paused the old acct, made a new one and uploaded the ENTIRE thing in 5 minutes under the EXACT SAME DOMAIN, yes MSN is retarded and does not remember domains for some unapparent reason, yes I had to change the urls and tracking info but compare that to a 2 week set up on msn, but same thing for google and adwords editor its an easy way to relaunch your entire acct with little effort and stress. BUT MSN, GGL and YHO all use sepearte formats on the excel sheet so it cant be launched across all 3 instantly, BUT AGAIN all you have to do is move some stuff around on the excel sheet and change your url's ON THE EXCEL SHEET and either way its still 100 times faster than recreating it by hand, hope that helped because it sure as heck helped me today.

ok great you can import campagins from excel sheets into the editor, but how? look, what i did is copy a campaign from the editor (right click/copy) paste it into excel, change a few landing pages and now im stuck with the new sheet. there should be a way to import it, since its already in the adwords format..

thanks for any help