If you want to automate a repetitive task
If you find yourself applying the same formatting or reorganizing data in the same sequence over and over, recording a macro lets you save that whole process once and then run it again with a single click any time you need it.
Check out data validation too
Building a dropdown list with data validation is another way to make a spreadsheet more efficient to work with, especially for forms that multiple people fill in.
Frequently Asked Questions
Do I need to know how to code to record a macro?
No. Recording a macro simply captures your actual mouse and keyboard actions, so you can use it without writing any code at all.
Does a file with a macro need to be saved differently?
Yes. To keep the macro intact, you need to save the file as an .xlsm (macro-enabled workbook) rather than a regular .xlsx file.