Convert from Excel xls to xlsx in ruby

Question

是否有任何gem /插件/代码片段将使用ruby从Excel xls转换为xlsx

Answer 1

Assuming you have excel installed, you should be able to use win32ole (http://ruby-doc.org/stdlib/libdoc/win32ole/rdoc/index.html) to script Excel. The easiest technique would probably be to rename the file as a .xlsx file, then have Excel open it and save it. That's probably easier than trying to script your way through a "save as" operation.

It's not a Ruby solution, but I've also scripted the Excel interface using AutoIt.

Answer 2

If you have Excel installed you can use the following method to convert a xls file into a xlsx file:

require 'win32ole'

def xls2xlsx(path, target = nil)
  raise ArgumentError unless path =~ /.xls\Z/
  raise ArgumentError unless File.exist?(path)

  target = path + 'x' unless target # Save the workbook. / must be \  
  puts "convert %s to %s" % [path, target]

  # Create an instance of the Excel application object
  xl = WIN32OLE.new('Excel.Application')
  # Make Excel visible  1=visible 0=not visible
  xl.Visible = 1
  #~ xl.Interactive = false  #visible, but no input allowed
  #~ xl.ScreenUpdating = false  #make it faster
  xl.DisplayAlerts = false  #No alerts like "don't overwrite
  # Add a new Workbook object      
  wb = xl.Workbooks.Open(File.expand_path(path))

  wb.SaveAs(File.expand_path(target).gsub!(/\//, '\\'), 51 ) #excel 2007
  # Close the workbook
  wb.Close
  # Quit Excel
  xl.Quit
end

---

If you need th other way (xlsx to xls) you can use:

def xlsx2xls(path, target = nil)
  raise ArgumentError unless path =~ /.xlsx\Z/
  raise ArgumentError unless File.exist?(path)

  target = path.chop unless target # Save the workbook. / must be \  
  puts "convert %s to %s" % [path, target]

  # Create an instance of the Excel application object
  xl = WIN32OLE.new('Excel.Application')
  # Make Excel visible  1=visible 0=not visible
  xl.Visible = 1
  #~ xl.Interactive = false  #visible, but no input allowed
  #~ xl.ScreenUpdating = false  #make it faster
  xl.DisplayAlerts = false  #No alerts like "don't overwrite
  # Add a new Workbook object      
  wb = xl.Workbooks.Open(File.expand_path(path))

  wb.SaveAs(File.expand_path(target).gsub!(/\//, '\\'), -4143 ) #excel97_2003_format 
  # Close the workbook
  wb.Close
  # Quit Excel
  xl.Quit
end  

I use the 2nd method in combination with axlsx to get a xls-file. First I create a xlsx with axslx, then I convert it via winole into a xls.

Answer 3

roo is the only option that springs to mind

EDIT

Although this link demonstrates writing xlsx files