can you use Microsoft Office 2011 with anything past 10.7.5
I have been wanting to upgrade for forever but I was told if I did I may have problems with Microsoft 2011. I don't when I will upgrade the Microsoft program. Also, I was told that I would need to backup my whole computer on a external hard drive, which I don't have. I don't want to make any mistakes. Any good information is appreciated. Thanks.
Dell Inspiron E1505, Notebook