Zotero will work with Microsoft Word and LibreOffice/OpenOffice/NeoOffice to create bibliographies and insert in-text citations into your manuscript.
To help you get started here are links to pages within this guide on using Zotero with word processors:
Right Click on a Citation or List of Citations (Shift & Down Arrow to highlight the ones you want)
To create a bibliography or a citations list in Zotero, highlight one or more references and then right-click (or control-click on Macs) to select “Create Bibliography from Selected Item(s)…”. Then select a citation style for your citation/bibliography format and choose either to create a list of Citations/Notes or a Bibliography. Then choose one of the following four ways to create your citation/bibliography:
2. Choose the Citation Style and Copy to Clipboard for pasting into a document or email.
3. Paste into the document.