How to Use RANDARRAY
Last updated: 2026-09-06
⚡ Quick Answer
RANDARRAY generates a randomized array of numbers between specified bounds and dimensions.
=RANDARRAY(10, 5, 1, 100, TRUE)📊 Visual Demo
HOME · INSERT · FORMULAS · DATA
fx =RANDARRAY(10, 5, 1, 100, TRUE)
| A | B | C | D | E | |
|---|---|---|---|---|---|
| 1 | 1 | 10 Rows | 5 Cols | Between 1 and 100 | =RANDARRAY(10, 5, 1, 100, TRUE) |
| 2 | 2 | Integer Mode | TRUE flag | — | Whole Numbers Only |
| 3 | 3 | Simulation | Monte Carlo | Ready | Matrix Populated |
🧠 Deep Dive
RANDARRAY generates a randomized array of numbers between specified bounds and dimensions.
Key Insights
- Dynamic arrays calculate once in the top-left cell and spill results automatically.
- Spill ranges resize when source data changes.
- Requires Microsoft 365 or Excel 2021+.
Common Mistakes
- Typing data inside a spill range causes #SPILL! errors.
- Referencing spilled cells with standard ranges.
Pro Tips
- Use IFERROR for empty fallbacks.
- Combine SORT + UNIQUE + FILTER.
FAQ
What does this formula do in plain English?
RANDARRAY generates a randomized array of numbers between specified bounds and dimensions.
Why is my formula not working?
Typing data inside a spill range causes #SPILL! errors.
Does this work in Google Sheets?
Yes, this syntax is fully compatible with Google Sheets.
What is the most common mistake?
Referencing spilled cells with standard ranges.
Related Guides
How to Use the FILTER Function in ExcelHow to Use the SEQUENCE FunctionHow to Use TRANSPOSE in ExcelHow to Use RAND and RANDBETWEENExcel Error Hub
Need Complete Playbooks?
Download our verified manuals covering ERP Cleanup and Modeling.
Explore Playbook Series (From ₹199)