如何根据一列中的不同值填充多个列

I have an excel file as:

我有一个excel文件:

+----+------------+
| ID | Order date |
+----+------------+
| A  | 1/1/2011   |
| A  | 1/3/2012   |
| A  | 1/8/2013   |
| A  | 1/20/2014  |
| A  | 1/23/2015  |
| B  | 1/1/2011   |
| B  | 1/20/2014  |
| B  | 1/23/2015  |
+----+------------+
+----