CSV, JSON, and Excel in Python
From the Pandas cheat sheet · Import and Export · verified Aug 2026
CSV, JSON, and Excel
Load and save common text and spreadsheet formats.
python
df = pd.read_csv("input.csv")
df.to_csv("output.csv", index=False)📌 Select columns and dtypes during ingestion
💡 Parse dates while reading when practical
🔍 Excel support requires an engine package
⚠️ JSON orientation must match the consumer
csvjsonexcelio
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