I'm a linux guy myself(love Arch Linux

), and I like the
e-liquid-recipes web-calculator, since it's got meassuring by weight as an option(the most important to me!), and you can save all your recipes for later.
Also, besides all the web-calculators for non-windows users, there's also a xml calculator that's stickied in this very subforum. I don't us it since it dosen't feature measuring by weight, but I have taken a look at it and it seems pretty nice to me(-if not using weights).
I don't have an office-package or spreadsheet installed, as when I rarelly need such functionality, then google drive/docs is fine for me, and so if uploading the xml to google drive/docs and selecting to open it with 'zoho spreadsheet online viewer/editor', instead of the default viewer, then you can check it out. Maybe the default viewer works fine for others, but just not for my browser then(dwb - a chromium backend with vim'ified keyboard navigation, like pentadactyl/vimperator for firefox).