Where do I find "menu" in Office Calc?

I want to change the page margins in office calc. All the answers say to select menu->format…
Where do I find “menu”? It does not exist in the current downloadable version that I can see.

They will be refering to the line of text only menu headings at the top of the window just above the first row of icons. Select the word Format to see a drop down list of further options to choose from.