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readstat-cli

Binary crate producing the readstat CLI tool for converting SAS binary files (.sas7bdat) to other formats.

Note: The ReadStat C library supports SAS, SPSS, and Stata file formats. The readstat-sys crate exposes the full ReadStat API — all 125 functions across all formats. However, this CLI currently only supports SAS .sas7bdat files. SPSS and Stata formats are not supported.

Subcommands

  • metadata — Print file metadata (row/var counts, labels, encoding, format version, etc.)
  • preview — Preview first N rows as CSV to stdout
  • data — Convert to output format (csv, feather, ndjson, parquet)

Key Features

  • Column selection (--columns, --columns-file)
  • Streaming reads with configurable chunk size (--stream-rows)
  • Parallel reading (--parallel) and parallel Parquet writing (--parallel-write)
  • SQL queries via DataFusion (--sql, feature-gated)
  • Parquet compression settings (--compression, --compression-level)

For the full CLI reference, see docs/USAGE.md.