avoid duplicate lines from excel

[AntonyRayan]

Hi everyone,
I am importing an excel file in php , in that file there are 10 lines,so it read that ten line and saves it in database.
After that I inserted five more lines , while again I am inserting , it should avoid the 10 lines and should read and save the new lines.
For this I need musql code?

[pritaeas]

That's only possible if your excel files contain a unique column (or combination of columns) so you can identify the already inserted rows.

[AntonyRayan]

ok