12 Excel Functions You've Never Heard Of
There are countless functions in the Excel library…with many new ones popping up.
Stay ahead of the game and get familiar with these functions 👇
➡️ HSTACK
=HSTACK(array1, [array2], ...)
Combines arrays horizontally - perfect when you need to merge columns from different sheets into a single array. It takes your separate columns and puts them side by side automatically.
➡️ VSTACK
=VSTACK(array1, [array2], ...)
Stacks your arrays on top of each other. When you have multiple data sets that need to be combined into one, VSTACK does it in one simple command.
➡️ DROP
=DROP(array, rows, [cols])
Removes specific rows from your data range. Whether it's stripping out header rows or removing trailing rows, it cleans your data instantly.
➡️ CHOOSE
=CHOOSE(index, value1, [value2], ...)
Pulls specific values from a list based on position. Need the third item from a range? CHOOSE(3, range) gets it done. Perfect for creating dynamic references or custom dropdown selections.
➡️ EXPAND
=EXPAND(array, rows, [cols])
Stretches your data to fill a specified size. It repeats values to create patterns or fill templates - essential when you need to duplicate data across multiple rows and columns.
➡️ MAP
=MAP(array, lambda)
Applies a formula to every element in your array. Instead of creating helper columns, MAP processes calculations across entire ranges in one go. Perfect for bulk data transformations.
➡️ GROUPBY
=GROUPBY(array, groupBy_array, [value_array], [operation])
Summarizes data based on specific criteria without pivot tables. It groups similar items together and performs calculations within those groups, giving you instant summary reports.
➡️ BYCOL
=BYCOL(array, lambda)
Processes calculations column by column. Want to sum each column separately? BYCOL handles it efficiently without multiple formulas.
➡️ BYROW
=BYROW(array, lambda)
Process entire rows of data with a single command. Perfect for calculating running totals or row-based metrics.
➡️ SCAN
=SCAN(initial_value, array, lambda)
Creates running calculations across a range. It tracks cumulative totals, running averages, or any progressive calculation you need across your dataset.
➡️ LAMBDA
=LAMBDA(parameter(s), calculation)
Builds custom functions directly in Excel. No VBA needed - just write your calculation logic and reuse it anywhere in your workbook.
➡️ PIVOTBY
=PIVOTBY(values, rows, columns, [aggregate])
Creates pivot-like summaries without the complexity of pivot tables. Get grouped totals and summaries with a single function, making data analysis faster and simpler.
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One function can replace hours of manual work.
Have you ever used any of these functions? Let us know in the comments below 👇
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