Update README.md

README.md

@@ -12,5 +12,6 @@ tags:
 - climate
 - synthetic
 size_categories:
-- 100K<n<1M
----
+- 1M<n<10M
+---
+Sheetpedia, a large-scale corpus of over 295,000 diverse spreadsheets (from 324,000+ workbooks) compiled from enterprise email archives and online forums. Sheetpedia provides extensive coverage of real formulas and annotations – addressing a gap left by prior table datasets which often lack formula semantics. Sheetpedia fills a crucial need for a large, high-quality spreadsheet benchmark, enabling more effective spreadsheet intelligence and natural language interfaces for spreadsheet tools.