: The .nm4 extension is a proprietary map format used by Navikey's 7 Ways software.
: These maps are often generated from OpenStreetMap (OSM) data by third-party contributors or the official Navikey community. How to Use the Content nm4.zip
: Use a tool like 7-Zip or WinZip to extract the .nm4 file(s) from the zip archive. Knowledge Base / FAQ: What is a ZIP
Knowledge Base / FAQ: What is a ZIP file and how do I install a ... - ESI : An nm4
: The official Navikey Download Page provides the latest software versions and official map links.
: Copy the extracted .nm4 files directly into that maps folder.
: An nm4.zip file is usually a container for one or more of these map files, allowing users to download entire regions or countries at once.