You can add various types of files to Zotero, either on their own, or attached to a citation. Note that some files, like HTML files and image files, are natively supported in Firefox. If you are using Zotero within Firefox, and you double click on these types of files inside your Zotero collection, they will launch inside your browser. If the files are not supported in Firefox, double clicking on the file will launch it in whatever program your OS is set to launch the file in. For example, if you store a Word Doc or an Excel spreadsheet inside your Zotero library, double clicking on those files will launch the program you have designated to open those file types.
To add a file to your Zotero collection:
- Open Zotero
- Learn more at Open Zotero
- Click a collection in the left column
- Drag the file from your desktop or a folder on your computer into the middle column