Roo

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Roo implements read access for all common spreadsheet types. It can handle:

  • Excelx
  • OpenOffice / LibreOffice
  • CSV

Additional Libraries

In addition, the roo-xls and roo-google gems exist to extend Roo to support reading classic Excel formats (i.e. .xls and Excel2003XML) and read/write access for Google spreadsheets.

#Installation

Install as a gem

$ gem install roo

Or add it to your Gemfile

gem 'roo', '~> 2.0.0'

Usage

Opening a spreadsheet

require 'roo'

xlsx = Roo::Spreadsheet.open('./new_prices.xlsx')
xlsx = Roo::Excelx.new("./new_prices.xlsx")

# Use the extension option if the extension is ambiguous.
xlsx = Roo::Spreadsheet.open('./rails_temp_upload', extension: :xlsx)

xlsx.info
# => Returns basic info about the spreadsheet file

Roo::Spreadsheet.open can accept both paths and File instances.

Working with sheets

ods.sheets
# => ['Info', 'Sheet 2', 'Sheet 3']   # an Array of sheet names in the workbook

ods.sheet('Info').row(1)
ods.sheet(0).row(1)

# Set the last sheet as the default sheet.
ods.default_sheet = ods.sheets.last
ods.default_sheet = s.sheets[3]
ods.default_sheet = 'Sheet 3'

# Iterate through each sheet
ods.each_with_pagename do |name, sheet|
  p sheet.row(1)
end

Accessing rows and columns

Roo uses Excel's numbering for rows, columns and cells, so 1 is the first index, not 0 as it is in an Array

sheet.row(1)
# returns the first row of the spreadsheet.

sheet.column(1)
# returns the first column of the spreadsheet.

Almost all methods have an optional argument sheet. If this parameter is omitted, the default_sheet will be used.

sheet.first_row(sheet.sheets[0])
# => 1             # the number of the first row
sheet.last_row
# => 42            # the number of the last row
sheet.first_column
# => 1             # the number of the first column
sheet.last_column
# => 10            # the number of the last column

Accessing cells

You can access the top-left cell in the following ways

s.cell(1,1)
s.cell('A',1)
s.cell(1,'A')
s.a1

# Access the second sheet's top-left cell.
s.cell(1,'A',s.sheets[1])

Querying a spreadsheet

Use each with a block to iterate over each row.

If each is given a hash with the names of some columns, then each will generate a hash with the columns supplied for each row.

sheet.each(id: 'ID', name: 'FULL_NAME') do |hash|
  puts hash.inspect
  # => { id: 1, name: 'John Smith' }
end

Use sheet.parse to return an array of rows. Column names can be a String or a Regexp.

sheet.parse(:id => /UPC|SKU/,:qty => /ATS*\sATP\s*QTY\z/)
# => [{:upc => 727880013358, :qty => 12}, ...]

Use the :header_search option to locate the header row and assign the header names.

sheet.parse(header_search: [/UPC*SKU/,/ATS*\sATP\s*QTY\z/])

Use the :clean option to strip out control characters and surrounding white space.

sheet.parse(:clean => true)

Exporting spreadsheets

Roo has the ability to export sheets using the following formats. It will only export the default_sheet.

sheet.to_csv
sheet.to_matrix
sheet.to_xml
sheet.to_yaml

Excel (xlsx) Support

Stream rows from an Excelx spreadsheet.

xlsx = Roo::Excelx.new("./test_data/test_small.xlsx")
xlsx.each_row_streaming do |row|
  puts row.inspect # Array of Excelx::Cell objects
end

Iterate over each row

xlsx.each_row do |row|
  ...
end

Roo::Excelx also provides these helpful methods.

xlsx.excelx_type(3, 'C')
# => :numeric_or_formula

xlsx.cell(3, 'C')
# => 600000383.0

xlsx.excelx_value(row,col)
# => '0600000383'

Roo::Excelx can access celltype, comments, font information, formulas, hyperlinks and labels.

xlsx.comment(1,1, ods.sheets[-1])
xlsx.font(1,1).bold?
xlsx.formula('A', 2)

OpenOffice / LibreOffice Support

Roo::OpenOffice supports for encrypted OpenOffice spreadsheets.

# Load an encrypted OpenOffice Spreadsheet
ods = Roo::OpenOffice.new("myspreadsheet.ods", :password => "password")

Roo::OpenOffice can access celltype, comments, font information, formulas and labels.

ods.celltype
# => :percentage

ods.comment(1,1, ods.sheets[-1])

ods.font(1,1).italic?
# => false

ods.formula('A', 2)

CSV Support

# Load a CSV file
s = Roo::CSV.new("mycsv.csv")

Because Roo uses the standard CSV library, and you can use options available to that library to parse csv files. You can pass options using the csv_options key.

For instance, you can load tab-delimited files (.tsv), and you can use a particular encoding when opening the file.

# Load a tab-delimited csv
s = Roo::CSV.new("mytsv.tsv", csv_options: {col_sep: "\t"})

# Load a csv with an explicit encoding
s = Roo::CSV.new("mycsv.csv", csv_options: {encoding: Encoding::ISO_8859_1})

Upgrading from Roo 1.13.x

If you use .xls or Google spreadsheets, you will need to install roo-xls or roo-google to continue using that functionality.

Roo's public methods have stayed relatively consistent between 1.13.x and 2.0.0, but please check the Changelog to better understand the changes made since 1.13.x.

Contributing

Features

  1. Fork it ( https://github.com/[my-github-username]/roo/fork )
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'My new feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request

Issues

If you find an issue, please create a gist and refer to it in an issue (sample gist). Here are some instructions for creating such a gist.

  1. Create a gist with code that creates the error.
  2. Clone the gist repo locally, add a stripped down version of the offending spreadsheet to the gist repo, and push the gist's changes master.
  3. Paste the gist url here.

License

Roo uses an MIT License