Excel extract data

I have data in Column A excel in the format:
aaa\bbb\ccc\ddd\123.xls

I want two things to be done from this data:
1. I want to extract everything from column A before last \ , that means the formula should give result: aaa\bbb\ccc\ddd
2. After this result is in new column, let's say the formula is pasted in Column E, I should be able to compare the whole column E & take out unique values out of it.

Thanks,
A
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AcklesAsked:
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AcklesAuthor Commented:
Can someone answer, I need it bit urgent....
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NBVCCommented:
Try this formula:

=LEFT(A1,FIND("#",SUBSTITUTE(A1,"\","#",LEN(A1)-LEN(SUBSTITUTE(A1,"\",""))))-1)

where A1 contains original.

Then copy the new column, paste special >> Values over itself.

Then while that column is selected go to Data tab, and select Remove Duplicates.
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AcklesAuthor Commented:
Great!!!


Thanks a lot.

A
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AcklesAuthor Commented:
Perfect!
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