Spreadsheet “units indicator” HACKS do NOT use a units-aware Quantity algebra!

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Tutorial
[TECHNICAL SLIDE TRAIL] The Webel libraries for Wolfram Mathematica: With SysMLv1 models.
Section
SECTION: Webel ADT case study: Extracting structured data from unstructured Open XML spreadsheet data
Mathematica keywords
Quantity
Webel Mathematica keywords
ADT`
Webel ADT
XL layer
US layer
US$Row
US$Cell
Keywords
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For reference, an associated Policy Note (you don't need to visit this link yet):
Mathematica: The Webel Units` package has Quantity variables for frequently used units using a naming convention 'unit$[Symbol]' or 'unit[DescriptiveName]' or unit[Acronym], each with a corresponding '$unit...' for the units identifier String(s).
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Units and Quantity extraction with US$Row
Notes
[CONVENTION, NAMING, PATTERN, STYLE, TIP]{RECOMMENDED} Mathematica: The Webel Units` package has Quantity variables for frequently used units using a naming convention 'unit$[Symbol]' or 'unit[DescriptiveName]' or unit[Acronym], each with a corresponding '$unit...' for the units identifier String(s).
Snippets (quotes/extracts)
Related slides (includes other tutorials)
XL$Cell value resolution for “text” requires an XL$ResourcesMap (Real, Integer, and Boolean value resolution does not)
UUID-driven Once-caching. Example: XL$Cell value resolution with an XL$ResourcesMap
Webel ADT hierarchy views as tree, graph, and SysML
ADT hierarchy for the XL` package for reading unstructured data from OpenXML XLSM bundles
Overview of the Webel OpenXML libraries ADT Case Study
Typical unstructured spreadsheet data imported into the XL layer
XL$Row and XL$Cell under the hood
XL$Cell with a VBA formula and XL$F
Related slides (backlinks, includes other tutorials)
Units and Quantity extraction with US$Row
US$RowList spanned rows filling
US$RowList sub-list extraction
US$RowList & EX$RowMap column extraction and custom styled tables
US$RowList “section” extraction
UD` demo package for US$Section
UD` demo: Basic US$ValuesSection
US$ValuesSection to EX$RowMap
US$SectionMap auto-detection
Specific Component-aware sub-ADTs
Demo Component values extraction (but not yet as EX Component ADTs)
The demo UD$EX$Component for extracted structured EX Layer data
The US$SheetManager as a bridge between the US Layer and EX Layer
Extracted demo UD$EX$Component:Demo UD$EX$Components: Creative views in the UD$SheetManager
Demo UD$EX$Components analyser
UD$EX$Components as (quick) XML
UD$EX$Component “database” demo (using a Wolfram Language EntityStore)
Visit also
Mathematica: POLICY NOTES for the Webel Abstract Data Type (ADT) pseudo classes with inheritance for the Wolfram Language
Visit also (backlinks)