📊 Excel (.xlsx) — columns with headers:
| nl / word / слово | ru / перевод | pronunciation | example | level |
| werken | работать | [вэркэн] | Hij werkt hard | A1 |
Each sheet = separate topic. Columns auto-detected by header name.
📄 CSV / TSV — same column structure as Excel, comma or tab separated:
nl,ru,pronunciation
werken,работать,[вэркэн]
📋 JSON — array or object with cards / words key:
[{"nl":"werken","ru":"работать","pronunciation":"вэркэн","topic":"verbs","level":"A1"}]
or: {"cards":[{"word":"werken","translation":"работать"}]}
Keys recognized: nl/dutch/word_front/front/word → front; ru/russian/translation/перевод → back
📝 TXT / Paste — one pair per line, separator auto-detected:
werken = работать
lopen - ходить
fietsen | кататься на велосипеде
slapen спать (TAB)
Pronunciation in [brackets] is extracted: werken [вэркэн] = работать
🃏 Anki (.apkg) — standard Anki export file.
Field 1 → front, Field 2 → back. Tags become topic. HTML is cleaned automatically.