MS Excel
A circular reference is

A formula that either directly or indirectly depends on itself
Geometric modeling tool
Always erroneous
A cell that points to a drawing object

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MS Excel
How can you delete a record?

Select Data > Form from the menu to open the Data Form dialog box, find the record and Click the Delete button
Delete the column from the worksheet
Select Data > Delete Record from the menu
Click the Delete button on the Standard toolbar

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