What is an ECO file? The “ECO” file format is associated with the NetManage ECCO (Enterprise Core Objects) application. ECCO was a personal information manager (PIM) and database software that allowed users to organize and manage their data in a flexible and customizable manner. It was popular during the 1990s and early 2000s. The ECCO database files have the extension “.eco” and contain structured data stored in a proprietary format. The application allowed users to create custom dat...
