Melissa (formerly Melissa Data), a provider of global data quality and address verification tools.

Right-click the first part ( melissa-11.7z.001 ) and select "Extract" using a tool like 7-Zip or WinRAR.

These types of files typically contain large datasets (like address, phone, or identity databases) used by the Melissa Updater or MatchUp Object to perform data cleaning and verification tasks. 🛠️ How to Handle This File