I have 2 columns of data with over 1000 rows. Does anyone know how i can simply change the SKU's at the end to the Sku's at the top. For example, here is a small section of the data

4380 10
8620 4
1244 7
4263 2
2930 7
3158 2
1124 8
3953 9
1468 3
3532 1


I want the data above to change to the data below...is there anyway to invert it????

3532 1
1468 3
3953 9
1124 8
3158 2
2930 7
4263 2
1244 7
8620 4
4380 10