When you download a document from the web using Chrome, a banner appears at the bottom of the screen giving you the ability to interact with the downloads.
To open the downloads window as a tab in Chrome:
Once the window is open you can interact with the downloads. One of the options is to view them in the download folder. If you downloaded to the default folder you should consider it temporary storage and move them to somewhere more permanent and/or to a shared location.
Remember to keep a security-first mindset, and download only files that you trust are not malicious.