excel to plist conversion in cocoa and vice-versa

[GosthMan]

I want to create a plist file from an excel file. The structure of excel and plist is defined.Excel file has only two columns, one is "key" and the other is corresponding "value" column.So the final plist that will be generated is of the form:\[code\]<key>keyString1</key><string>valueString1</string><key>keyString2</key><string>valueString2</string> <key>keyString3</key><string>valueString3</string> .......................................................................................<key>keyStringn</key><string>valueStringn</string>\[/code\]Now the problem is that the string values for "keys" and "values" are inturn strings i.e. they are not one word string. They may go more than one line.Hence I can't use csv file structure here.Need your urgent help.Please suggest how to read values from excel sheet so that both column values can be separated.Any sample code will add aid.