Apple has decided to go it's separate way from MicroSoft.
MS "Word" is (supposedly) replaced by "Pages" and
MS "Excel" is (supposedly) replaced by "Numbers" and
MS "PowerPoint" is (supposedly) replaced by "Keynote"
Good#1: These replacement "apps" are free and automatically updated.
Bad#1: Pages ver 5+ will not open or save as RTF documents !
What is wrong with those people... where is Steve Jobs when you need him ?
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