Api downloading Excel file,need to process it using logstash and send data to Elasticsearch

[Divyank_Mahalle]

Hi,
I am using esign genie API which can download all folder reports as an Excel file. I need to fetch data in an excel file to elasticsearch. I checked the option for using logstash but excel needs to export to CSV.
Is there any way to send excel file data directly to elasticsearch using API.

https://developers.esigngenie.com/#download_report

POST /folders/getFolders/download
Content-Type application/json

input {
  http_poller {
        type => "esign"
        urls => {
           esign => {
                method => get
                url => "https://www.esigngenie.com/esign/api/folders/getFolders/download"
                headers => {
                    Accept => "application/json"
                }
            }
        }

        request_timeout => 60

        schedule =>  { cron => "0 9 * * *  UTC"}
        codec => "json"

        user => "U"
        password => "<P>"
    }
}
filter{ }
output {
    stdout {
        codec => rubydebug
    }
    elasticsearch {
       #host ip to be changed to new test system
        hosts => ["<Host>"]
        index => "index"
        user => "<U>"
        password => "<P>"
   }
}