Detete matching cells

[gary]

Col A has 326,167 cells.
Col B has 239,820 cells.

Here's portion of my spreadsheet:


A B
0000000021957 0000000022002
0000000022002 0000000032002
0000000031957 0000000032003
0000000032002 0000000042002
0000000032003 0000000052002
0000000042002 0000000052003
0000000052002 0000000062002
0000000052003 0000000102002
0000000061967 0000000121996
0000000061968 0000000142002
0000000062002 0000000152002
0000000081963 0000000162002
0000000102002 0000000481994
0000000121996 0000000481995
0000000142002 0000000481996
0000000152002 0000000481997
0000000162002 0000000481998
0000000341991 0000000481999
0000000401961 0000000482000


How can I delete the cells in Col A whose contents match cells in Col
B?

 

[Ron Rosenfeld]

Col A has 326,167 cells.
Col B has 239,820 cells.

Here's portion of my spreadsheet:


A B
0000000021957 0000000022002
0000000022002 0000000032002
0000000031957 0000000032003
0000000032002 0000000042002
0000000032003 0000000052002
0000000042002 0000000052003
0000000052002 0000000062002
0000000052003 0000000102002
0000000061967 0000000121996
0000000061968 0000000142002
0000000062002 0000000152002
0000000081963 0000000162002
0000000102002 0000000481994
0000000121996 0000000481995
0000000142002 0000000481996
0000000152002 0000000481997
0000000162002 0000000481998
0000000341991 0000000481999
0000000401961 0000000482000


How can I delete the cells in Col A whose contents match cells in Col
B?

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