From: Mamba Black Date: 2011-11-23T16:33:09+09:00 Subject: Create Excel Sheet(.xls/.xlsx) Hi, I need to create a excel sheet(.xls or .xlsx). My Code: if File.exists?("test.xls") puts "File EXISTS" -----my code---- else File.open(fileToTest, File::WRONLY|File::CREAT|File::EXCL) puts "-------FILE CREATED--------" ----my code---- end It creates an excel file(test.xls), but when I try to open the file I get an alert box as shown in the attachment. I working on Windows 7, MS Office 2007 Thanks Attachments: http://www.ruby-forum.com/attachment/6783/excel.png -- Posted via http://www.ruby-forum.com/.