A family of Microsoft word processing software products for creating web, email, and print documents.
If the text doesn't start at the top of the page, the vertical alignment could be wrong. Is this Word for Windows (= the full desktop app for Windows)? In that case, go to the Layout tab on the ribbon, click the dialog launcher icon in the Page Setup group, and, in the Page Setup dialog box, change Vertical alignment to "Top." Confirm with OK.
Does that fix the problem? If it doesn't, please post a screen shot which illustrates what you see in your document.