If you are looking for a specific document that was inside such a folder, it is safer to search for the specific PDF form name (e.g., "Autodichiarazione spostamenti") rather than downloading a compressed archive from an unknown source.
: The .7z extension indicates a high-compression archive created with 7-Zip , a free and open-source file archiver. c.o.v.i.d.7z
: Some developer communities, like Viva o Linux, use .7z archives to share open-source COVID-19 dashboard projects or data analysis scripts. If you are looking for a specific document