Notes about the TPQ file extension:
To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened
" (Windows 7) or "How do you want to open this file?
" (Windows 10) if you double-click the file. There click on "More apps"
and choose a suitable software to view such files on your PC or from email attachments.
The TPQ file type is primarily associated with 'TOPO!Pro' by National Geographic Maps. TOPO! Pro for ArcGIS is a set of extensions that add functionality to ESRI's ArcGIS. The Multi-layer extension enables ESRI GIS users to import USGS topographic maps, hillshading, and digital elevation models (DEMs) into ArcMap projects. Image file sizes are minimized using a tiling scheme and integrated image cataloging. For example, a full color quad with hillshade is under 1 MB in size. The map images are stored in a proprietary file format called .TPQ. ArcGIS recognizes this file as a raster image format, similar to a .TIF or .JPG format.
Detailed information for file extension TPQ:
File classification: Graphic
To change file associations press Windows Key
and then Apps and Features
> Default apps
> Choose default apps by file type
Invalid file associations could be the result of underlying issues within your Windows PC.