Data Transformation of unstructured excel data

I’m relatively new with data transformations and KNIME and was wondering how you’d go about transforming an excel spreadsheet like the attached into a more usable format for power BI.

Each drawing comes under a heading like Mechanical schematics (lines with a blue or green fill). I’d like to obtain information on document status which can be filtered out by discipline, location, is it overdue, whilst keeping the raw information as well if more detail is required on the dashboard. I can’t change the excel trackers format as these are locked by the company and there will be more drawing records attached to this.

I’ve removed sensitive data like company name and location.

Tracker.xlsx