Challenge 3: Two Different Kinds of Presentation-Format Conversion — Solution Walkthrough

What LibreOffice Chapter 9's conversion actually involves:

Converting a .pptx to a .odp is a conversion between two genuinely
different FILE formats. Both sides of that conversion are still real
files the entire time — before, during, and after — stored on disk,
openable by other software that understands either format
independently of any particular application being involved.

What this chapter's conversion actually involves:

Converting a .pptx into a native Google Slides presentation moves the
content from a real file into a cloud-native object that, per Chapter
1, isn't a file at all once the conversion is complete — no file
sitting on a disk anywhere, just a live object that exists inside
Google's own systems. Going back the other direction (File → Download)
means generating a brand-new file from something that had no file
behind it a moment before.

Why this is a genuinely different KIND of question:

LibreOffice's conversion is a comparison between two systems that both
represent the same underlying idea (a file), just encoded two
different ways. This chapter's conversion is a comparison between a
system built around files and a system that, by Chapter 1's own
foundational design, deliberately isn't — meaning the risks aren't
just "will the formatting survive translation," but also "does the
destination even have an equivalent concept of a file in the first
place." Both conversions can lose fidelity around similar features
(animations, macros/scripts), but only this chapter's version involves
one side of the conversion not being a file to begin with.

WHY THIS WORKS AS AN ANSWER
------------------------------
This exercise checks that the file-vs-cloud-object distinction from
this chapter's own "A Genuinely Different Kind of Conversion" section
is understood as a structural difference, not just a surface-level
observation that "the tools are different" — the same distinction the
chapter's own compare-table draws between the two situations.