Zotero can manage your citations while you work in Word, LibreOffice or Google Docs. If you've installed the Zotero 6.0, word processor plug-ins were included with that.
After you do this, you'll be able to place in-text citations and create bibliographies from within your Word documents.
Macs -- the Zotero toolbar will float near the top of your screen. If you don't see it, go to the View menu, toolbars, then click Zotero to add a checkmark.
PCs -- after installing the plug-in you should see an Add-Ins tab or a Zotero tab, depending upon which version of Word you have.
