You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 7-Zip. How to open 7z files - Trend Micro Help Center

You may need an app like Unzip One or a similar archive manager from your device's app store to unpack the data.

The file is a compressed archive that likely contains documents related to economics, as the Hungarian title translates to "Wonderland of Economic Subjects."

Do you need help to open this file on your current device?

You can often right-click the file and select "Extract All" to open it directly in File Explorer . If that doesn't work, you will need a free utility like 7-Zip or WinZip .