How to Merge Data from Multiple Excel Files Using VBA, Power Query, and AI

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Data professionals frequently struggle to consolidate specific sheets from large numbers of Excel files into a single unified table. The task grows more complex when sheet names vary across files and data structures are inconsistent, with mismatched headers, column orders, and data types. Manual copy-paste methods are error-prone and unscalable, while VBA macros offer automation but require coding knowledge. Power Query provides a more accessible middle ground for structured consolidation workflows. Modern AI-assisted tools are also emerging as potential solutions to handle inconsistencies and reduce manual intervention in data merging tasks.

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