docs: Nested folders support in Power BI and Excel

Author: igorlukanin

docs/pages/product/apis-integrations.mdx

@@ -48,8 +48,8 @@ tools][ref-viz-tools]. Some of the features with partial support are listed belo
 | Feature | ✅ Supported in |
 | --- | --- |
 | [Hierarchies][ref-hierarchies] | [Microsoft Power BI][ref-powerbi] via the [DAX API][ref-dax-api]<br/>[Cube Cloud for Excel][ref-cube-cloud-for-excel]<br/>[Cube Cloud for Sheets][ref-cube-cloud-for-sheets]<br/>[Tableau][ref-tableau] via [Semantic Layer Sync][ref-sls]<br/><br/>Also, supported in [Playground][ref-playground] |
-| Flat [folders][ref-folders] | [Microsoft Power BI][ref-powerbi] via the [DAX API][ref-dax-api]<br/>[Cube Cloud for Excel][ref-cube-cloud-for-excel]<br/>[Cube Cloud for Sheets][ref-cube-cloud-for-sheets]<br/>[Tableau][ref-tableau] via [Semantic Layer Sync][ref-sls]<br/>[Apache Superset][ref-superset] via [Semantic Layer Sync][ref-sls]<br/>[Preset][ref-preset] via [Semantic Layer Sync][ref-sls]<br/><br/>Also, supported in [Playground][ref-playground] |
-| Nested [folders][ref-folders] | Currently, not supported in any tool |
+| Flat [folders][ref-folders] | [Microsoft Power BI][ref-powerbi] via the [DAX API][ref-dax-api]<br/>[Microsoft Excel][ref-excel] via the [MDX API][ref-mdx-api]<br/>[Cube Cloud for Excel][ref-cube-cloud-for-excel]<br/>[Cube Cloud for Sheets][ref-cube-cloud-for-sheets]<br/>[Tableau][ref-tableau] via [Semantic Layer Sync][ref-sls]<br/>[Apache Superset][ref-superset] via [Semantic Layer Sync][ref-sls]<br/>[Preset][ref-preset] via [Semantic Layer Sync][ref-sls]<br/><br/>Also, supported in [Playground][ref-playground] |
+| Nested [folders][ref-folders] | [Microsoft Power BI][ref-powerbi] via the [DAX API][ref-dax-api]<br/>[Microsoft Excel][ref-excel] via the [MDX API][ref-mdx-api] |
 
 ### Authentication methods