Learn the difference between Excel COUNT and COUNTA, plus TEXTBEFORE and TEXTAFTER tricks, so you clean text and totals with ...
Messy Excel formulas are more than just an eyesore—they're harder to maintain. Every repeated cell reference and tangled parenthesis makes your work difficult to audit, edit, and share. That's why you ...
Learn AI product development fundamentals with local LLMs. Covers prompt engineering, structured output, multi-step reasoning, API design, and frontend integration through 10 comprehensive lessons ...
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