HF RL Explorer

Given the project's rebranding to "Fesod", the main entry-point classes still carry legacy names ( FastExcel…

Given the project's rebranding to "Fesod", the main entry-point classes still carry legacy names ( FastExcel…: a task in LegoFlow-SWE (Harbor dataset). and then use .sheet().doReadSync() for sheet-based reading or .csv() for CSV files. Similarly, writing should start with FesodSheet.write(...) and…

The task

and then use `.sheet().doReadSync()` for sheet-based reading or `.csv()` for CSV files. Similarly, writing should start with `FesodSheet.write(...)` and return an `ExcelWriterBuilder`, and I should be able to get sheet/table builders via `FesodSheet.writerSheet(...)` or `FesodSheet.writerTable(...)`.

Part of Lego-X/LegoFlow-SWE.