Elasticsearch.markdown

 First let's take a quick look at Elasticsearch [glossary](https://www.elastic.co/guide/en/elasticsearch/reference/current/glossary.html)
 
-# Import
+# Importing from CSV
 
 Importing a CSV file into Elasticsearch using Logstash configuration file
 ```
@@ -137,7 +137,14 @@ Any visualisation can be filtered using a request:
 
 ![kibana_visualisation3](http://gitlab.srv.picviz/picviz/libpvcop/uploads/3fcb5765cc1e17e095613789b711ba39/kibana_visualisation3.png)
 
-# Export
+# Exporting to CSV
+
+As the REST API format is natively JSON, exporting data to CSV requires a bit of additional work.
+I found some existing tools:
+[estab](https://github.com/miku/estab)
+[elasticsearch-csv](https://github.com/jprante/elasticsearch-csv)
+But neither seems to use the efficient [Scroll API](https://www.elastic.co/guide/en/elasticsearch/reference/current/search-request-scroll.html)
+So I rolled my own Bash script using the Scroll API and [jq](http://stedolan.github.io/jq) for JSON parsing:
 
 ```bash
 #!/bin/bash