Update README.md

Author: codingchili

README.md

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 # parser-excel-elasticsearch [![Build Status](https://travis-ci.org/codingchili/parser-excel-elasticsearch.svg?branch=master)](https://travis-ci.org/codingchili/parser-excel-elasticsearch)
 
-Parses XLSX files into ElasticSearch using column titles from a specified row combined with data in columns on each row. May be used with Kibana or other visualization applications, example result using a transaction log in excel format  [image](https://raw.githubusercontent.com/codingchili/parser-banktrans-es/master/sample-redacted.png). The application comes with a web-interface to simplify uploading.
+Parses XLSX/XLS/CSV files into ElasticSearch using column titles from a specified row combined with data in columns on each row. May be used with Kibana or other visualization applications, example result using a transaction log in excel format  [image](https://raw.githubusercontent.com/codingchili/parser-banktrans-es/master/sample-redacted.png). The application comes with a web-interface to simplify uploading.
 
 ![sample UI image](https://raw.githubusercontent.com/codingchili/parser-excel-elasticsearch/master/excelastic.png)