Exporters

Turn an OWLF document into CSV, Excel or a printable PDF, and back.

Package	Output	Round trip
`@owlf/export-csv`	`toCsv(document, options?)`: string	`@owlf/import-csv` `fromCsv(text)`
`@owlf/export-xlsx`	`toXlsx(document)`: `Promise<Uint8Array>`	`@owlf/import-xlsx` `fromXlsx(bytes)`
`@owlf/export-pdf`	`toPdf(document, options?)`: `Promise<Uint8Array>`	none

CSV

One row per entry, English snake_case headers, RFC 4180.

import { toCsv } from "@owlf/export-csv";

const forSpreadsheets = toCsv(document, { bom: true, metadata: false });
const lossless = toCsv(document); // first line: # owlf 0.1 {scales, source, warnings}

Lossless round trip: keep the default metadata: true. The first line holds the scales and app info as JSON, so fromCsv rebuilds the exact document.
For Excel: bom: true keeps umlauts and emoji intact; metadata: false puts the header in row 1.
Formula guard: text cells starting with =, +, - or @ get a leading ', removed again on import.
Lists: tags as group/name, joined with , , backslash-escaped.

Sheets Entries (frozen header, filters, mood cells in the level color), Mood scale, Sleep scale, About. Text over Excel’s 32,767-character cell limit continues on an Overflow sheet and is joined back on import.

PDF

A printable report: title page, one year-in-pixels page per year, then entries by date. The default Helvetica covers Western European text; pass font with your own TTF or OTF bytes for emoji or CJK.