Generate a CSV from a generic list of objects using reflection and extension methods

http://www.joe-stevens.com/2009/08/03/generate-a-csv-from-a-generic-list-of-objects-using-reflection-and-extension-methods/

using System.Text;
using System.Reflection;

public static class Extensions
{
    public static string GetCSV(this List list)
    {
        StringBuilder sb = new StringBuilder();

        //Get the properties for type T for the headers
        PropertyInfo[] propInfos = typeof(T).GetProperties();
        for (int i = 0; i <= propInfos.Length - 1; i++)
        {
            sb.Append(propInfos[i].Name);

            if (i < propInfos.Length - 1)
            {
                sb.Append(",");
            }
        }

        sb.AppendLine();

        //Loop through the collection, then the properties and add the values
        for (int i = 0; i <= list.Count - 1; i++)
        {
            T item = list[i];
            for (int j = 0; j <= propInfos.Length - 1; j++)
            {
                object o = item.GetType().GetProperty(propInfos[j].Name).GetValue(item, null);
                if (o != null)
                {
                    string value = o.ToString();

                    //Check if the value contans a comma and place it in quotes if so
                    if (value.Contains(","))
                    {
                        value = string.Concat("\"", value, "\"");
                    }

                    //Replace any \r or \n special characters from a new line with a space
                    if (value.Contains("\r"))
                    {
                        value = value.Replace("\r", " ");
                    }
                    if (value.Contains("\n"))
                    {
                        value = value.Replace("\n", " ");
                    }

                    sb.Append(value);
                }

                if (j < propInfos.Length - 1)
                {
                    sb.Append(",");
                }
            }

            sb.AppendLine();
        }

        return sb.ToString();
    }
}