| all_items | Return the list of all items |
| batch_extract | Extract a list of items from many GDX |
| extract | Extract data from a gdx |
| extract.gdx | Extract parameter or variable data from the gdx file |
| gams | Run the GAMS executable |
| gdx | GDX file |
| igdx | GAMS sysdir locator (kept for backward compatibility) |
| load_records | Eagerly load records for one or more symbols |
| write.gdx | Write a list of parameters / sets / variables to a GDX |
| write2.gdx | Write parameters and sets to a gdx (alias of write.gdx for backward compatibility) |