Expanding Office announces its Windows 8-friendly products , Office 13 and Office 2013 . Office reigns as Microsoft 's most lucrative product with .1 % market share of PCs . Microsoft to tablets may be necessary for growth .
Microsoft announces its Windows 8-friendly products , Office 13 and Office 365 . Office reigns as Microsoft 's most lucrative product with 90 % market share of PCs . Expanding Office to tablets may be necessary for growth .