from xlsx

Converts Excel (.xlsx/.xls) input to TSV output.

Behavior:

• Reads data from Excel spreadsheets and converts each row to a TSV line.
• By default, reads from the first sheet in the workbook.
• Use --sheet to specify a sheet by name.
• Use --list-sheets to list all available sheet names.
• Cell values are converted to strings:
  • Empty cells become empty strings.
  • TAB, newline, and carriage return characters are replaced with spaces.

Input:

• Requires an Excel file path (.xlsx or .xls).

Output:

• Each spreadsheet row becomes one TSV line.
• Cells are joined with TAB characters.
• By default, output is written to standard output.
• Use --outfile to write to a file instead.

Examples:

1. Convert an Excel file to TSV (first sheet) tva from xlsx data.xlsx > data.tsv

2. Convert a specific sheet by name tva from xlsx --sheet "Sheet2" data.xlsx

3. List all sheet names in a workbook tva from xlsx --list-sheets data.xlsx