Thank you for reaching out! Since Adobe Spark has been replaced by Adobe Express, your best path forward is to manually migrate your content. While Adobe Express doesn't support the direct import of old .html
Spark project files, you can still repurpose your saved JPEGs and captions.
If your HTML file displays your captions with the images when opened in a browser, we recommend copying the text manually and re-uploading the JPEGs into a new Adobe Express project. From there, you can re-add the captions using the text tools in Adobe Express. This way, you preserve your original layout and content within the new platform.
Let us know if you need help getting started in Adobe Express — we’re happy to guide you!