The file is the 8th segment of a multi-part compressed archive created with 7-Zip .
: Right-click on "UK-PD Plan.7z.001" (the first piece). UK-PD Plan.7z.008
: Ensure you have every file in the sequence (UK-PD Plan.7z.001, .002, ... up to the final number) in one location. The file is the 8th segment of a