Table2csv gem allows you to export a table to csv.

Add this line to your application's Gemfile:

gem 'table2csv'

And then execute:

$ bundle

Or install it yourself as:

$ gem install table2csv

To use this gem add this require statement to your application.js file:

//= require table2csv

Use the table_export_tag helper like any other regular tag helper next to your table:

<%= table_export_tag %>

In order to select a particular table use id of the table as follows

<%= table_export_tag('id of the table') %>

Options can be provided as second parameter.Following options are available:

export_link_text: 'Download'
width: '400px'
height: '500px'
color: '#444'
bgcolr: '#000'  (background-color)

<%= table_export_tag('name',{export_link_text: 'Download', width: '100px', height: '50px', color: '#E01111', bgcolor: '#444'})%>

Bug reports and pull requests are welcome on GitHub at https://github.com/ethirajsrinivasan/table2csv. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

The gem is available as open source under the terms of the MIT License.