How do I link a Libre3 spreadsheet to a Libre3 database?

Dear Computer Gurus, I have Libre 3, I know that this is an old version, but it is what I have. I have created a spreadsheet of addresses, and it is saved as an odb. file. I then have tried to link it to the Labels program through the Database program, but something is missing; when I print the file, just the cell names print. I have read the Libre help, and watched several YouTube explanations…and still something is not quite right. What am I missing?

https://documentation.libreoffice.org/en/english-documentation/