XlsFormatProvider: LeftoverDataException when importing a specific document. 'Initialisation of record 0x55(DefaultColWidthRecord) left 2 bytes remaining still to be read.'

The named ranges are not updated after rows or columns are inserted.

When a row or column is inserted in a worksheet that has cells referred from another worksheet, the formula should be updated so it refers to the same values as before the insertion or removal of cells.

When there are split panes in a workbook, the topLeftCell property can be omitted. In this case, the format provider throws NullReferenceException.