This inheritance list is sorted roughly, but not completely, alphabetically:

[detail level 12]

CIDiscoveryReader
CNanoXLSX.Internal.Readers.DiscoveryReader	Discovers relationship information in an OOXML package before document readers execute
CIDisposable
CNanoXLSX.Internal.Readers.XlsxReader	Class representing a reader to decompile XLSX files
CIDocumentReader
CNanoXLSX.Internal.Readers.MetadataAppReader	Class representing a reader for the App metadata file (docProps) embedded in XLSX files
CNanoXLSX.Internal.Readers.MetadataCoreReader	Class representing a reader for the Core metadata file (docProps) embedded in XLSX files
CNanoXLSX.Internal.Readers.StyleReader	Class representing a reader for style definitions of XLSX files
CNanoXLSX.Internal.Readers.ThemeReader	Class representing a reader for theme definitions of XLSX files
CNanoXLSX.Internal.Readers.WorkbookReader	Class representing a reader to decompile a workbook in an XLSX files
CIPasswordReader
CNanoXLSX.Internal.Readers.LegacyPasswordReader	Class representing a reader for legacy passwords
CIPluginBaseReader
CNanoXLSX.Internal.Readers.RelationshipReader	Class representing the legacy workbook relationship reader of XLSX files
CIPluginReadProcessor
CNanoXLSX.Internal.Readers.FinalizingProcessor	Class representing a processor (no stream handling) for finalizing tasks after all parts are read from a XLSX file
CISharedStringReader
CNanoXLSX.Internal.Readers.SharedStringsReader	Class representing a reader for the shared strings table of XLSX files
CIWorksheetReader
CNanoXLSX.Internal.Readers.WorksheetReader	Class representing a reader for worksheets of XLSX files
CNanoXLSX.Internal.ReaderUtils	Static class with common util methods, used during reading XLSX files
CNanoXLSX.Internal.Readers.Relationship	Class to represent a workbook relation (do not use)
CNanoXLSX.Internal.StyleReaderContainer	Class representing a collection of pre-processed styles and their components. This class is internally used and should not be used otherwise
CNanoXLSX.Extensions.WorkbookReader	Class, providing functions to read Workbooks either by file or stream