How to Merge Multiple Excel Files in Python for Reporting

How to Merge Multiple Excel Files in Python for Reporting Tired of spending hours manually copying data between Excel files for your quarterly reports? If you're a developer or analyst working with Excel workbooks, you've likely encountered this: multiple files, multiple sheets, scattered data that needs to be consolidated into one report. It's tedious, error-prone, and wastes valuable time. The Manual Way (And Why It Breaks) Most people deal with this by copying and pasting data between Excel files, often opening and closing dozens of workbooks. You end up clicking through sheets, selecting ranges, and trying to keep everything aligned. This method is incredibly slow and prone to mistakes—especially when dealing with large files or repetitive tasks. It also breaks down when Excel APIs are involved, or when you hit limits on manual interaction. When deadlines loom, the last thing you want is to spend hours on a task that can be automated. The Python Approach Here’s a simple Python scri