Merging several XLS workbooks into a single file often trips up developers because each spreadsheet can contain multiple sheets, varied cell formats, and hidden rows that need to stay intact. Aligning column widths and preserving formulas across files adds another layer of complexity. Traditional desktop libraries force you to manage file I/O, memory consumption, and version compatibility on your own, which slows down integration pipelines.
GroupDocs.Merger Cloud SDK for Python offers a clean REST‑API endpoint that accepts a list of XLS URLs or binary streams and returns a merged workbook in seconds. Because the service runs in the cloud, you avoid installing heavy Office interop components and can scale the operation without worrying about local resource limits. The SDK wraps the API in idiomatic Python methods, handling authentication, request construction, and response parsing automatically.
The article includes a ready‑to‑run code snippet that demonstrates uploading two XLS files, invoking the merge endpoint, and downloading the combined result with just a few lines of Python. Give it a try and streamline your spreadsheet workflows today.
https://kb.groupdocs.cloud/merger/python/merge-xls-files-using-python-rest-api/
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