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Using IF with AND, OR, and NOT functions in Excel
Combine text from two or more cells into one cell
Overview of formulas in Excel - Microsoft Support
Use AND and OR to test a combination of conditions
Use cell references in a formula - Microsoft Support
Split text into different columns with functions - Microsoft Support
Formula tips and tricks - Microsoft Support
Lookup and reference functions (reference) - Microsoft Support
Implicit intersection operator: @ - Microsoft Support
Create conditional formulas - Microsoft Support
Examples of commonly used formulas - Microsoft Support