# CX Reader/Writer
* 4/5/2017 - v2.1.0 released. It supports basic filtering for aspects.
* 10/24/2016 - v 1.1.3 released. Default layout will be applied to networks without layout section.
* 9/2/2016 - v 1.1.1 released.
CX is the data exchange format, implemented as JSON, for Cytoscape Cyberinfrastructure (CI) services and applications. With this app, you can import and export networks in CX JSON format from/to a file.
As of June 2016, this format is used for data exchange between Cytoscape and [NDEx](http://www.ndexbio.org/) database, and eventually, this will be used by all other Cytoscape CI services.
### Use Cases
CX is a new standard based on JSON. Your application can use a standard JSON reader to import files generated with this app, and your application should interpret the JSON according to the [CX Format Specification](https://docs.google.com/document/d/1kAUzVj6X86YCWHnTyZtybh1lt4zO-M6anCMJBD_PyG0/edit?usp=sharing). If you are planning to create Cytoscape CI services, you can use this app to generate test data from existing Cytoscape session files.
### CX Format Specification
* [CX, the Cytoscape Cyberinfrastructure Network Interchange Format](https://docs.google.com/document/d/1kAUzVj6X86YCWHnTyZtybh1lt4zO-M6anCMJBD_PyG0/edit?usp=sharing)
## How to Use
This app provides standard Cytoscape file readers and writers -- you can access CX import and export options from _File_ menu.
### Import CX
* **FIle → Import → Network → File** and choose _CX_ as file format.
### Export CX
* Export network data only, not visual information:
* **FIle → Export → Network** and choose _CX_ as file format.
* Export network and visual information:
* **FIle → Export → Network and View** and choose _CX_ as file format.