A command line tool that draw plots on the terminal.

ISO 3166-1 country lists merged with their UN Geoscheme regional codes in ready-to-use JSON, XML, CSV data sets

Fastest end-to-end CSV ingestion for Ruby (with C acceleration). SmarterCSV auto-detects formats, applies smart defaults, and returns Rails-ready hashes for seamless use with ActiveRecord, Sidekiq, parallel jobs, and S3 pipelines — even for messy user-uploaded real-world data.

Spreadsheet Architect is a library that allows you to create XLSX, ODS, or CSV spreadsheets super easily from ActiveRecord relations, plain Ruby objects, or tabular data.

Shale is a Ruby object mapper and serializer for JSON, YAML, TOML, CSV and XML. It allows you to parse JSON, YAML, TOML, CSV and XML data and convert it into Ruby data structures, as well as serialize data structures into JSON, YAML, TOML, CSV or XML.

Comma is a small CSV (ie. comma separated values) generation extension for Ruby objects, that lets you seamlessly define a CSV output format via a small DSL

Collection of postal codes in different formats, ready for importing.

Chaotically confused, like Babel

Streaming & Fast XLSX Spreadsheet Writer for Ruby

CSV Reading and Writing

📜 A CLI toolkit for extracting and working with your digital history

📎 active_admin_import is based on activerecord-import gem - the most efficient way to import for ActiveAdmin

csvreader library / gem - read tabular data in the comma-separated values (csv) format the right way (uses best practices out-of-the-box with zero-configuration)

Export pull requests and/or issues to a CSV file. Supports GitHub, GitLab, and Bitbucket

IOStreams is an incredibly powerful streaming library that makes changes to file formats, compression, encryption, or storage mechanism transparent to the application.

Jekyll plugin for generating Markdown collection pages from CSV/YAML/JSON records 🧙📖

A pretty good CSV parser for Ruby

Fixes CSVs with unquoted commas in values

Punk Datasets - Meta Data (In Tabular .CSV Format) Incl. Attributes & More - Original Matt & John's Series (V1/V2), Expansion, More, & Frens

Bend CSVs to your will with declarative schemas.