Macros are small programs that a Google Sheets user can create to complete repetitive tasks. In fact, macros are an excellent way for a user to become familiarized with Apps Script, as a snippet of code is saved in the script editor each time a macro is recorded. Recording a macro is as simple as going to Tools → Macros → Record macro.
Recording macros and assigning shortcuts to them is a great way to execute repetitive tasks and become a more efficient Sheets user. You can also import macros from other workbooks so you can perform the same tasks and assign the same shortcuts across all of your workbooks.