SunRiseSet is a ruby class calculates the times of the sunrise, solar noon and sunset. It also calculates astronomical, naval and civil twilight times. Not sure of the origin of the algorithm. I have seen a fortran version http://www.srrb.noaa.gov/highlights/sunrise/program.txt a .pl www.mso.anu...

A Ruby tool to handle import spreadsheets into AllPlayers API.

A gem to export spreadsheet files data into JSON

Bulk search via spreadsheet.

Read and write Google Spreadsheets like records

copy and paste between ruby arrays in irb/rails console and a spreadsheet (tab delimited) and vise versa. Based on irbcp by Ara T. Howard

A gem to generate xls documents by using rxls templates.

Rusk is library that read and write Open Document Spreadsheet Format(ods).

A spreadsheet generator (ODS, XLS) and parsing tool. Uses Roo as a backend and attempts to implement newer features on top of it.

Convert Excel or Spreadsheet to Ruby hash

Simplify the task of building a spreadsheet in Rails. This gem is based on the Spreadsheet gem. The syntax have been simplified a bit.

Generate HTML tables which popular spreadsheet software packages know how to read

Pulls a Google Spreadsheet into a CSV

Parses spreadsheets, validates its data against ActiveRecord model and instanciates valid data

Zz structures are an interesting way of representing relations invented by Ted Nelson, whose domain model I provide in a gem Yzz. In this gem, YNelson, I combine Yzz with the universal Petri net provided by YPetri (another gem I wrote) to obtain a hybrid data structure that formalizes and generel...

Assign random pairs from a google docs spreadsheet

A tool for loading spreadsheet data into ruby objects

Use spreadsheet views in Rails 3

Provides a command line and API interface to extract data from ods spreadsheets.

Convert vocabularies created in a spreadsheet template to SKOS.