merge-xlsx 0.1.2

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📊 merge-xlsx

merge-xlsx is a simple yet powerful CLI tool to merge multiple single-sheet .xlsx files into one workbook.
Built for anyone tired of manually copying and pasting Excel data!

🚀 Why did I build this?

I often found myself with dozens (sometimes hundreds!) of Excel files, each with a single sheet, that needed to be combined into one file for analysis or reporting.
Doing this by hand was tedious, error-prone, and just not fun.
Existing tools were either too complex, required Excel itself, or didn’t handle my use case well.

merge-xlsx solves this with a single command!

⚡️ Features

• 🟢 Merge any number of .xlsx files (single-sheet) into one
• 🎨 Beautiful progress bar and colored output (thanks to rich)
• 🏃 Fast and memory-efficient (uses pandas)
• 🐍 Python 3.13+ support

📦 Installation

The recommended way is with pipx:

pipx install merge-xlsx

🛠 Usage

merge-xlsx file1.xlsx file2.xlsx ... -o merged.xlsx

You can use wildcards to select files:

merge-xlsx /path/to/files/*.xlsx -o merged.xlsx

🧩 Edge Cases & Notes

• All input files must have a single sheet.
• All files should have the same columns (otherwise, pandas will fill missing columns with NaN).
• Output file will overwrite if it already exists.
• Large files are supported, but memory usage depends on total data size.
• Files with different encodings or corrupt files may cause errors.

🚧 Possible Improvements

• Option for plain/clear stdout (no rich output)
• Support for multi-sheet files (merge specific sheets)
• Column mapping or reordering
• Output to CSV or other formats
• GUI version

🤝 Contributing

PRs and suggestions are welcome! Please open an issue if you find a bug or have a feature request.

📄 License

MIT © Vinícius Costa

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