paper-xlsxAPI referencedescriptors.excelopenpyxl.descriptors.excelpaper-xlsx 0.2.1 API referenceCopy MarkdownOpen Excel specific descriptors Coordinate attributeCoordinate= Integer ClassBase64BinaryCellRangeExtensionExtensionListGuidHexBinaryPercentageRelationTextPointUniversalMeasureElementListpaper-xlsx 0.2.1 API referenceBase64Binarypaper-xlsx 0.2.1 API reference