: Use 7-Zip (the native tool for this format) or WinRAR.
: Use the p7zip command-line utility or universal extractors like Keka.
To inspect the contents of the report-style file, you must first extract it:
Based on available data, is a compressed archive file in the 7z format, typically used to distribute large geographic or topographic map datasets for navigation software. File Overview
: Offline navigation tools like OsmAnd or Locus Map. How to Access the Data
: The "TOPO" prefix strongly suggests topographic map data , which includes terrain contour lines, elevations, and geographic features. These are commonly used in: GPS Devices : Garmin, Navitel, or Magellan handheld units. GIS Software : Desktop applications like QGIS or ArcGIS.