An Azure analytics service that brings together data integration, enterprise data warehousing, and big data analytics. Previously known as Azure SQL Data Warehouse.
One workaround could involve using an external service or a custom script to first decrypt the Excel files and then upload them to a secure location (like a secure container in ADLS) where Synapse can access them.
Once the Excel files are accessible, you can use Azure Synapse's notebook feature to write Python scripts for data transformation.