enum OdDgCompressDatabaseFlags { kRemoveEmptyCellHeaders = 0x0001, kRemoveEmptyTexts = 0x0002, kRemoveTextsSpaceOnly = 0x0004, kRemoveUnusedCellDefinitions = 0x0008, kRemoveUnusedLineStyles = 0x0010, kRemoveUnusedTextStyles = 0x0020, kRemoveUnusedLevels = 0x0040, kRemoveUnusedDimStyles = 0x0080, kRemoveUnusedNestedXRefLevels = 0x0100, kRemoveUnusedMultilineStyles = 0x0200, kRemoveUnusedElementTemplates = 0x0400, kRemoveUnusedItemTypeLibraries = 0x0800, kRemoveXRefsIfFileNotFound = 0x1000, kRemoveNullModelViewGroups = 0x2000 };