A: Partial match – French postal codes starting with 273 include 27300 (Bernay), 27320 (Marsonnas), 27350 (Hauville), etc. The file may contain data for all codes in the 273xx range.
If you are determined to see the contents, open the .rar file inside a virtual machine (like VirtualBox) or a Windows Sandbox (Windows 10/11 Pro/Enterprise). This isolates the file from your main OS. Code postal new folder 273.rar
.rar extension intact. Do not change it to .zip unless you recompress the archive.