Add VBA functions for regexes?

[mccalluc]

This looks like a good source.

Concerns:

• Excel documents with macros are likely to be flagged as potential security risks.
• VBA code is a binary blob, and we won't easily be able to maintain it.
• Excel is proprietary: Shouldn't jump through hoops to work with it.

[mccalluc]

Other options:

• Don't even try!
• Add VBA to provide regex support in Excel.
• Target Google Sheets, which provides a regex function out of the box.
• Or target OpenOffice, where regexes can be turned on in the settings.