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This question told me to ask my excel question here:

I'm actually using libre calculator.

I have a spreadsheet where column G is supposed to be only email addresses. In Libre Calculator, how do I perform the equivalent of the following sql statement?

DELETE FROM spreadsheet WHERE g NOT LIKE '%@%'

This is my way of quickly deleting row with clearly erroneous emails.

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Filter and select for ColumnG contains @ then delete rows.

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