Retrieve & Prep Data

Your CSV import failed. The columns are wrong. Dates look like numbers. Sound familiar? You'll use your knowledge of the two data formats that power people analytics—CSV files and SQL tables—and apply that understanding to prevent downstream disasters. You'll practice importing CSV files into Excel with the right delimiter, encoding, and type-detection settings, so your data loads correctly the first time. You'll then analyze your imported data using a systematic cleaning checklist to identify hidden columns, verify row counts against the source, and save validated files. Using AI tools like C…