Challenge 3: Migrating VBA Automation to Sheets — Solution Walkthrough

What will transfer:

The workbook's actual data — cell values, formulas, formatting,
charts — will generally move over to Sheets reasonably well, following
the same "most everyday content survives" pattern the LibreOffice
course's own Chapter 9 established for a different pair of
applications. This is the part of the migration the team's assumption
is broadly correct about.

What will NOT transfer:

The VBA macros themselves. Opening or importing the workbook into
Sheets does not carry the automation logic along in any form — not
as broken code, not as a simplified version, not at all. VBA and
Google Apps Script are, per this chapter, two genuinely different
languages with no compatibility or conversion path between them,
exactly the same category of gap LibreOffice Chapter 9 identified
between VBA and LibreOffice Basic.

The real work actually required:

Every piece of VBA automation needs to be read and understood for
WHAT it was actually doing, then genuinely rewritten from scratch in
Apps Script's own JavaScript — reimplementing the same logic using
SpreadsheetApp (or the appropriate service for whatever the automation
does) rather than expecting any kind of import, conversion, or
translation tool to handle this automatically. This is a real
engineering task requiring dedicated time, not a checkbox to tick
during the migration.

WHY THIS WORKS AS AN ANSWER
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This is the direct, concrete application of this chapter's own central
warning box to a realistic team scenario — correctly separating "the
data mostly just works" from "the automation requires a genuine
rewrite" is precisely the distinction this whole chapter, and its
LibreOffice-chapter predecessor, exist to make clear before a team
gets partway through a migration and is surprised by it.