In Excel, when it comes to the implementation of "lookup," VLOOKUP is undoubtedly the most frequently used function. However, when encountering the following problem, VLOOKUP becomes useless. The ...

This approach involves submitting a minimal query, evaluating it, and then refining it by adding examples, context, and parameters (see STEPS) until a satisfactory result is achieved. This method also ...

DuckDB is an amazing tool with deep integration with Python and R, but sometimes you just need data in Excel. xlDuckDb allows DuckDB SQL to be run within Excel. Query results are returned as regular ...

The read_xlsx function does not allow you to add the file name as a column. This would be useful in cases where data is included in the file name, especially when reading multiple files like this: ...