# Copyright (c) 2010-2023 openpyxl
"""Definitions for openpyxl shared exception classes."""
[docs]class CellCoordinatesException(Exception):
"""Error for converting between numeric and A1-style cell references."""
[docs]class IllegalCharacterError(Exception):
"""The data submitted which cannot be used directly in Excel files. It
must be removed or escaped."""
[docs]class NamedRangeException(Exception):
"""Error for badly formatted named ranges."""
[docs]class SheetTitleException(Exception):
"""Error for bad sheet names."""
[docs]class InvalidFileException(Exception):
"""Error for trying to open a non-ooxml file."""
[docs]class ReadOnlyWorkbookException(Exception):
"""Error for trying to modify a read-only workbook"""
[docs]class WorkbookAlreadySaved(Exception):
"""Error when attempting to perform operations on a dump workbook
while it has already been dumped once"""