CSV Add Row Numbers
Prepend or append a sequential ID / row-number column to a CSV with a configurable start, step, padding, and prefix/suffix.
Related
ASCII Box Table from CSV
Render CSV as a bordered ASCII or Unicode box-drawing table for READMEs, code comments, and terminals.
Data
CSV Column Math
Add a computed column to a CSV using an arithmetic expression over existing numeric columns, evaluated safely without eval.
Data
CSV Column Selector
Keep, drop, or reorder CSV columns by header name or index.
Data
CSV Column Statistics
Compute per-column statistics (type, count, nulls, distinct, min/max, mean, median, std-dev) for every column in a CSV.
Data