Extracting large 7z archives ("long features") can sometimes take hours if they contain millions of small files.
If the "long feature" is too large for a single transfer (e.g., over 4GB for FAT32 drives), you can split it into volumes: Open the dialog in 7-Zip. Locate Split to volumes, bytes . fagroup.7z
Select a preset (like 700M for CD or 4092M for FAT32) or type a custom size. Extracting large 7z archives ("long features") can sometimes