I am wondering if it is both possible and reasonable for a person to use LibreOffice to learn MS Office. If someone were to purchase a "Teach Yourself Excel" or "Teach Yourself Word" program - or just take some free course online - would they be able to use LibreOffice to learn everything? I mean, are the interfaces similar enough that a person could easily transfer what they're learning about Excel into Calc? Or do the programs do things completely differently? I know that Office 2013 looks quite a bit different. But if someone knows the "technical" stuff; what they are trying to accomplish and how to do it in one suite, can that ability be easily transferred between the two? If you know one you can easily adapt to the other? Opinions?