# IO Operations

- xio: pretty printing
  - `set_line_width()`
  - `set_threshold()`
  - `set_edge_items()`
  - `set_precision()`
  - `xt::print_options::line_width`
  - `xt::print_options::threshold`
  - `xt::print_options::edge_items`
  - `xt::print_options::precision`
- xnpy: read/write NPY files
  - `load_npy()`
  - `load_npy()`
  - `dump_npy()`
  - `dump_npy()`
- xcsv: read/write CSV files
  - `load_csv()`
  - `dump_csv()`
- xjson: serialize to/from JSON