Other options include ruby's WIN32OLE and DBI libraries.  For the former, 
you'll have to be running on a machine w/excel installed. You'd use the latter 
on a windows machine to read the spreadsheets in via ODBC.  Your connect string 
would be *something* like:

connection_string = "dbi:ADO:" +
                    "Provider=MSDASQL;" +
                    "Persist Security Info=False;" +
                    "Extended Properties=\"dbq=c:/path/to/spreadsheet.xls\";"

HTH,

-Roy

-----Original Message-----
From: rubyonrails-talk@googlegroups.com [mailto:[EMAIL PROTECTED] On Behalf Of 
[EMAIL PROTECTED]
Sent: Thursday, October 16, 2008 12:02 PM
To: Ruby on Rails: Talk
Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: [Rails] Importing / Parsing Large Excel Files ?


Hello,

I'm running into a project where a client has large Excel files (60.000+ 
records per file) and he needs an application to import them into a database to 
use this data for useful operations (reporting, calculations .. etc).

I know about the available libraries:

http://raa.ruby-lang.org/project/parseexcel/
http://rubyforge.org/projects/spreadsheet/
http://rubyforge.org/projects/roo/

I've used parseexcel before but for small files. The point is that parseexcel 
and spreadhsheet libraries have a reputation that they can't handle large excel 
files (I don't know about 'roo').
The guy here (http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-
talk/223230) created some kind of a bridge between Ruby and Java to use 
'JavaExcelAPI' and it did work fine for him!

Has anyone tried importing large excel files with ruby? Do I really need to use 
a Java library through a bridge to get my job done?
Personally I prefer to hire a Java developer to do that Excel importing module 
than doing a bridge and correct me if I'm wrong.

What do you suggest guys? Is there some great ruby library to do the job that I 
never heard of before? Or do you suggest some tweaks like parsing the Excel 
file using 'parseexcel' like 500 records or something at a time?

I'm kinda lost and I need your help

Regards


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