1. Create your table at
Google Spreadsheet.
-> example
2. Copy your table from Google Spreadsheet.
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3. Paste your table to
Table Generator. (⚠️ Check 'Paste with formatting' option for your styling)
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4. Click 'Generate' -> 'Copy to clipboard'. (don't paste this into Notion. it won't work yet.)
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5. Generate
Notion Embedable URL with your copied HTML.
6. Paste the URL into your Notion Embed block.
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Reference :
Taewoong's notion blog
Shaun