Roo can access the contents of various spreadsheet files. It can handle * OpenOffice * Excel * Google spreadsheets * Excelx * LibreOffice * CSV

Axlsx_Rails provides an Axlsx renderer so you can move all your spreadsheet code from your controller into view files. Partials are supported so you can organize any code into reusable chunks (e.g. cover sheets, common styling, etc.) You can use it with acts_as_xlsx, placing the to_xlsx call in a view and adding ':package => xlsx_package' to the parameter list. Now you can keep your controllers thin!

Caxlsx_Rails provides an Caxlsx renderer so you can move all your spreadsheet code from your controller into view files. Partials are supported so you can organize any code into reusable chunks (e.g. cover sheets, common styling, etc.) You can use it with acts_as_caxlsx, placing the to_xlsx call in a view and adding ':package => xlsx_package' to the parameter list. Now you can keep your controllers thin!

Build LLM-backed Ruby applications with Ruby's Langchain.rb

Squib is a Ruby DSL for prototyping card games

Import tabular data from spreadsheets or similar sources into data models

Download, pull out of a ZIP/TAR/GZ/BZ2 archive, parse, correct, and import XLS, ODS, XML, CSV, HTML, etc. into your ActiveRecord models. Uses Upsert internally for speed.

Open local or remote XLSX, XLS, ODS, CSV (comma separated), TSV (tab separated), other delimited, fixed-width files, and Google Docs. Returns an enumerator of Arrays or Hashes, depending on whether there are headers.

Remotely open and parse Excel XLS, ODS, CSV and fixed-width tables.

Simple spreadsheet reader for common formats: Excel (.xls, .xlsx), Open-office (.ods) and some CSV (standard, excel, tab separated). Future versions: writing and more formats.

Bmg is Alf's relational algebra for ruby, but much simpler and lighter than Alf itself

Simple command line interface to convert .xls or .xlsx files to .csv

Rails admin engine

Administration interface for Ruby on Rails

i18n database backend for releaf

Supports importing data over various transports with key-value remapping & normalization

Tushare-Ruby is ruby version of [tushare](https://github.com/waditu/tushare). TuShare is a utility for crawling historical data of China stocks

Adops Report Scrapper is a collection of web scrappers that can automatically extract the data from your ad server, ad networks, ad exchanges, and other ad partners. It is an open source alternative to [STAQ](http://www.staq.com/). Say good-bye to spreadsheet. At the moment, this gem only focus on getting the data in. It is up to you how you would aggregate the data into your pageview & dfp/ad server data set.

Parse public AIP (Aeronautical Information Publication) and convert the data to either AIXM (Aeronautical Information Exchange Model) or OFMX (Open FlightMaps eXchange).

An ETL library for Ruby that performs the basic actions of ETL: extract, transform, and load. Easily extensible.