This text lives in the shared content-worksheets.js, so I'll edit it there — it updates both the workbook and the main book's worksheets identically.

Done. Note this intro text is shared, so it now reads the same in both the workbook and the main book's worksheets section.

The workbook references one resource as a string in JS (the Möbius image, via window.__resources fallback in the cover — actually it's a direct <img src> in HTML, which the bundler captures). Let me prepare a standalone source copy with the thumbnail template and verify the image references.

All resource references are plain HTML attributes (<img src>, <link href>, <script src>) — the bundler captures those automatically, and content-worksheets.js has no asset URLs inside it. So I just need to add the thumbnail template, then bundle. Let me add the template to a copy.

I'll copy the workbook to a standalone-source file and add the thumbnail template, then bundle.

Clean bundle, no missing assets. Let me verify it works offline.

The 13 MB inlined file takes a moment to unpack. Let me wait and re-check.

Verified — all 13 worksheets (106 fields), the updated cover title, and the Möbius image now resolving from an inlined blob URL. No errors. Delivering the standalone file.

Your standalone workbook is ready above — a single self-contained HTML file (cover + all 13 fillable worksheets) that works fully offline with everything inlined. Download and open in any browser.

The user edited the workbook directly, so I'll re-read it and re-sync my standalone source copy before bundling.

The user's edit changed the subtitle to "Workbook to win the campaign before it starts." All resources are plain HTML attributes (no JS-string assets), so I just re-sync my standalone source (adding the thumbnail template) and bundle.

Clean bundle, no missing assets. Verified working with identical structure in the prior export (only the subtitle text changed). Delivering.

Updated standalone workbook is ready above — fully offline, with your new subtitle "Workbook to win the campaign before it starts." Download and open in any browser.