With DataRow.io you can export a DynamoDB table to S3 in ORC, CSV, Avro, or Parquet formats with few clicks. Below steps walk you through building such, simple two-step pipeline.
Locate DynamoDB reader activity from the toolbar and drag it into the canvas.
Specify DynamoDB table name, read throughput, and optionally schema.
Locate S3 writer activity from the toolbar and drag it to the canvas.
Specify target S3 path and format (CSV, Parquet, etc...).
DataRow.io | Big Data Integration | Try it here.