Hi, I have a blocking problem and I really need urgent help. i'm very new in ruby and i find it great... I woudl like to open an xls file, but I get the following error : ***************** c:/ruby/lib/ruby/site_ruby/1.8/parseexcel/olestorage.rb:353:in `get_header': OLE::UnknownFormatError (OLE::UnknownFormatError from c:/ruby/lib/ruby/site_ruby/1.8/parseexcel/olestorage.rb:110:in `initialize' from c:/ruby/lib/ruby/site_ruby/1.8/parseexcel/parser.rb:172:in `new' from c:/ruby/lib/ruby/site_ruby/1.8/parseexcel/parser.rb:172:in `parse' from c:/ruby/lib/ruby/site_ruby/1.8/parseexcel/parseexcel.rb:10:in `parse' ****************** I installed parseexcel lib of course, but noo progress. Thanks for your help all houdev -- Posted via http://www.ruby-forum.com/.