: Ensure you have Asset Visualizer 2022 (often abbreviated as AV2022) installed. This tool is frequently hosted on GitHub or Japanese BVE development sites. Extraction : Use a program like 7-Zip or WinRAR to open the archive.
Are you currently or just trying to organize your object library within BVE Trainsim?
Map the "Preview Path" to the folder where you extracted the .7z contents. :
Once linked, browsing your BVE object library within the tool will now show static images of the models, making route building significantly faster.