Spreadsheet
File Format APIs for Ruby
Open Source Ruby APIs for Spreadsheets
Read, Write & Manipulate Microsoft Excel files via Ruby.
Spreadsheet File Format APIs for Ruby Include
rubyXL
An open source Ruby library for working with Excel XLSX file formats.
Spreadsheet Architect
It has inlcuded supports for the creation and handling of XLSX, ODS, or CSV spreadsheets using Ruby library.
Spreadsheet
Create, modify and manipulate Microsoft Excel compatible spreadsheets using Ruby API.