Ssa - Extension

1. Introduction: What is an SSA File? The .ssa file extension is most prominently recognized within the Esri ArcGIS ecosystem, specifically for StreetMap Premium data. StreetMap Premium is a high-quality, routable street data product designed for on-premises and enterprise deployment. The .ssa file (StreetMap Spatial Archive) acts as a container or a specific indexed dataset holding detailed street network geometry, attributes, and routing logic.