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3 must-know custom data validation formulas for preventing errors in Excel

Data validation in Microsoft Excel is a great way to limit what can be entered into a cell. However, creating rules using a formula allows you to enforce even more precise parameters—and there are ...

Allowing Only Multiples of Pack Quantity for Order Quantities in Excel Data Validation: 3 Steps to Reduce Fractional Order Rejections from 8 to 0 per Month Usi…

The phone rings because of an "order of 20 for a product with a pack quantity of 12"Until last month, a food wholesaler ...

Dynamic Excel Input Validation for Dates Using TODAY and EOMONTH: 3 Steps to Reduce Expense Report Rejections from 9 to 0 per Month

Expense reports rejected because "I already entered next week's business trip"In April 2025, I witnessed this scene in the ...
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Stop fixing Excel formulas: 5 vital habits for data integrity

Whether you're an Excel novice or a seasoned spreadsheet pro, we all share one dream: for our formulas to just... work. These five data integrity habits ensure your data stays clean, and your formulas ...