RE: Microsoft Dynamics AX Add-in for Word: Locals (regional settings)
Just tried, it does work on my AX 2012 R2 CU7.
There is just something strange about the decimal format:
I am logged in to my virtual development machine using RDP. The date format is applied via the virtual machine settings.
Using the Excel Office Add-In, the Excel from my local machine opens (there is no office installed on my virtual machine).
For the decimal format i had to change the region settings on my local machine, where excel is installed.
What version are you using? According to technet something changed in R2, although it only mentions language settings:
technet.microsoft.com/.../dn507091.aspx