Share OneDrive for devices on a home WiFi network

[tashagabby]

I'm running Windows 10 on a Dell desktop PC and a Microsoft Surface Book. I'm having trouble sharing files using OneDrive. I partiularly interested in sharing KeePass password manager databases, because sharing other files will often need to use the database. KeePass uses a trigger technique to keep the databases synchronized on the WiFi network, but the devices need to be able to share the databases.

I've consulted resources at https://www.tenforums.com/tutorials/36246-link-unlink-onedrive-microsoft-account-windows-10-a.html; here https://www.windowscentral.com/how-get-started-onedrive-windows-10; and at answers.Microsoft.

I hardly know how best to describe my issue, except to say that I just can't get file sharing with OneDrive to work.

TIA for your help.
SweetTasha.