11/9/2025

 11/9/2025

My main task today was to systematically organize and record the Excel and Python functions and methods I'd learned during my internship, so I could quickly review them later. In this process, I not only categorized common functions (such as VLOOKUP, IF, INDEX MATCH, SUMIF, TEXT, etc.) by function, but also wrote down application scenarios and sample code based on previous examples of actual data manipulation.

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