@User I am trying to extract a spice netlist with parasitics from a layout which contains other instances. How to make sure all the parasitics are extracted from the top layout as well as the instances and not only of the top layout. I am using the following commands in order 1. extract all 2. ext2sim labels on 3. ext2sim 4. extresist tolerance 10 5. extresist 6.ext2spice 7.ext2spice lvs 8.ext2spice cthresh 0 9. ext2spice rthresh 0 10. ext2spice extresist on 11. ext2resist scale on 12 ext2spice. When using extresist all the command window mentions unable to get the (instance_name) and when I see the spice file the parasitics of instances are extracted in the netlist. Attached are my files, RO is the main layout, the rest are instances and the tech used is sky130.crc. Can you give the list of commands step by step that can be used for the complete parasitics extraction for the spice netlist