In order not to affect battery life and stability, Microsoft apparently omitted in Office 2013 RT on Visual Basic for Applications (VBA) and thus on macros. In addition, the ARM Office does not integrate any additional features via third-party add-ins, according to the US blog "The Verge, " citing insiders.
Especially the lack of macros makes tablets with Windows 8 RT even less suitable for business use than they already are (due to the missing possibility, for example, to log in to a Windows domain). Microsoft has also omitted in Office 2013 RT, at least one source, even "a few" more features of the x86 version. Which are exactly, is not known.
Additionally, Office 2013 RT will initially be installed as a preview on the first ARM-based Windows tablets. Only in early 2013, the final version should then be re-supplied as a free upgrade, it goes on.spoods.de