Elastic search storage format

Hi All,
I am using elastic search 6.4.3 and mac osx.
I wanted help I am trying to put the content in CSV to elastic search via logstash. I am able to push the content to the Elastic search.

Its display the path of CSV in when I query the index via rest API and it also gives me CSV parse failure and no error on console. Where I could find the details logs. I wanted to see the data of each column and row in detail when I index to elastic search. like header: value in JSON format for each row include nested JSON.
On the side note: I also wanted to check where I can find detail logs and how to include plugins in elastic search
Attached All suggestion is appreciated

I think your separators are semicolons, you specified comma.

It both . For excel it comma, json messages it ":"