table

Displays data in a formatted, aligned table for inspection. Uses the rich library for terminal output. This is display-only: there is no --output flag. Cell values longer than 50 characters are truncated with ....

# Display first 20 rows (default)
undatum table data.csv

# Display with custom limit
undatum table data.jsonl --limit 50

# Display only specific fields
undatum table data.csv --fields name,email,status
undatum table workbook.xlsx --table Sheet2
undatum table nested.jsonl --flatten-nested

Reference

Reads: any readable format · Writes: a table in the terminal · Memory: bounded: --limit rows · Engines: python

undatum table [OPTIONS] INPUT_FILE

Argument	Description
INPUT_FILE	Path to input file. (required)

Option	Description	Default
-n, --limit INTEGER	Maximum number of rows to display (default: 20).	20
-f, --fields TEXT	Comma-separated list of field names to display.
-d, --delimiter TEXT	CSV delimiter character (auto-detected when omitted).
--quotechar TEXT	CSV quote character (iterabledata default '"' when omitted).
--encoding TEXT	File encoding (e.g., 'utf8', 'latin1').
--verbose / --no-verbose	Enable verbose logging output.	--no-verbose
-F, --format-in TEXT	Override input file format detection (e.g., 'csv', 'jsonl').
--table, --sheet TEXT	Table or sheet name for multi-table sources (Excel, SQLite, lakehouse).
--start-page INTEGER	Sheet index (0-based) for Excel files.	0
--trust	Acknowledge pickle deserialization risk when reading pickle sources.
--on-error TEXT	Parse-error policy: raise (default), skip, or warn.
--error-log TEXT	Append parse errors as JSONL (use with --on-error skip or warn).
--flatten-nested	Unfold nested dict / array-of-dict fields into dotted paths (e.g. city.lat).
--max-nested-depth INTEGER	With --flatten-nested, maximum nest depth to unfold (engine default 5).
--keep-nested-parents / --no-keep-nested-parents	With --flatten-nested, keep parent dict/array fields alongside dotted children.	--keep-nested-parents

See also shared options.