cat - Concatenate CSV files by row or by column. count - Count the rows in a CSV file. (Instantaneous with an index.) fixlengths - Force a CSV file to have same-length records by either padding or truncating them. flatten - A flattened view of CSV records. Useful for viewing one record at a time. e.g., xsv slice -i 5 data.csv | xsv flatten. fmt - Reformat CSV data with different delimiters, record