So I have Microsoft Office Starter 2010 installed on my laptop, but I need the full version of Excel for my final year project. I downloaded a trail version of Office and was working away on that for the past month but now the trial has run out.

Other then buying MS Office 2010, for €139, do I have any other options? Can I keep downloading trials?

I would buy the software, but I only need it for another few weeks of work. I can't really see myself needing the full version after that.

Why dont you use libre office?

i use it since i wont pay for a thing that i dont use much.

http://www.libreoffice.org/download/

Can't keep redownloading trials unless you format computer...

One thing you can try which used to work before but I am not sure if it works still... you change your computer date and time 1 month back before the expiration of your trial and reboot.

Doesn't your school have a software discount shop or something like that... The school makes deals with MS, Adobe etc and students and employees can get the software for cheap.. I got office for 10 euro's and the entire Adobe Master Collection for 40 euro's back in the days