Get all combinations from 2 columns?

Hi all,
this is my first post here, hope someone can help me out.

I have 2 colums with data

Column A:
AAA1
AAA2
AAA3
AAA4

Column B:
BBB1
BBB2
BBB3
BBB4
BBB5
BBB6

You can get the idea, I need to have them combined in each row but still separated in 2 columns. Like this:

Col A / Col B
AAA1 / BBB1
AAA1 / BBB2
AAA1 / BBB3
AAA1 / BBB4
AAA1 / BBB5
AAA1 / BBB6
AAA2 / BBB1
AAA2 / BBB2
AAA2 / BBB3
AAA2 / BBB4
AAA2 / BBB5
AAA2 / BBB6

And so on. Thing is the real data is like 200 values in column A and 900 values in column B, so I cant do this manually.

Ive attached a sample file so you can see exactly what Im looking.

Thanks in advance!