If the data is available in a reasonable structure in a table, it can be made (I use MySQL + PHP) into an OSM file for JOSM.

I am extracting address data from the government register https://data.gov.sk/organization/2df13d50-0b6f-48ba-884e-be66dc0a2934?q=Register+Adries

and use them for OSM https://proxy.freemap.sk/minvskaddress/ some file ra_2023-…zip

Pošty bez slova pošta https://groups.google.com/g/osm_sk/c/afglwDyRtBM/m/KGd1-IjvAQAJ