=begin When I tried to access excel file, I found some inconsistent behavior about range of string. ruby-1.9.3-p0 :001 > ("A".."AB").to_a => ["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R"...maso (Yen-Nan Lin)
=begin I access a tab-delimited text file from Excel, the text file is 5 lines in my editors (TextEdit, TextWrangler). However, when I use File.each_line to read it, this method only iterate once and combine 5 lines to 1 line. I ex...maso (Yen-Nan Lin)