AppendLine

Appends a copy of the specified string followed by the default line terminator to the end of the current File or StringBuilder object.

StringBuilderObject.AppendLine	Appends a copy of the specified string followed by the default line terminator to the end of the current File or StringBuilder object.
StringBuilderObject.AppendLine (String)	Appends a copy of the specified string followed by the default line terminator to the end of the current File or StringBuilder object.
StringBuilderObject.AppendLine (String, String)	Appends a copy of the specified string followed by the default line terminator to the end of the current File or StringBuilder object.