Deleting last two characters in a cell

Everyone,

I would really be grateful if someone could help me with the following:

In a column I have several rows (on average 100 rows) in which values like the following are defined: EP10000001A1. Thus, it looks something like the following

EP10000001A1
EP10000002A1
EP10000003A1
EP10000004A1

I would like to delete the last two characters in ever cell for every row. Hence, taking the above example all "A1" should be deleted so that it should looks like this:

EP10000001
EP10000002
EP10000003
EP10000004

As I said, on average I have a 100 rows in a column (sometimes up to 300 rows). Hence, I would really like to avoid doing this manually. How can I achieve this? Is there a standard Macro for this type of operation? (I must admit that I am new to VBA/creation of Macros).

Thank you in advance.

Best regards,
tony