Microsoft Excel: How to Find Missing Numbers in a Sequence. Locating missing sequential numbers can be an arduous task when working with long lists of data. For example, you might want to locate ...

Excel provides built-in tools to help you to find discrepancies like Filters, Conditional Formatting, advanced functions (If and IS, VLookUp, etc.), and Add-ins.

If you need to reconcile batches of records in Microsoft Excel, this simple VLOOKUP() solution offers a quick and easy way to find records in one batch that are missing from another.