If you are preparing a large archive for long-term storage or transfer, use settings. This maximizes space savings but requires significant RAM and time.
Select a preset (like 700M for CD or 4092M for FAT32) or type a custom size. fagroup.7z
Right-click your files, select 7-Zip > Add to archive... , and set the Compression level to Ultra . 2. Managing Extraction for Large Files If you are preparing a large archive for