I have been trying to work on xlsx files and have been getting “SCHEMA_CHANGE ERROR: New schema found. Please reattempt the query. Multiple attempts may be necessary to fully learn the schema”. This happens while trying to do a normal “SELECT COUNT(*) FROM DATASET_NAME” or any aggregate operation." I can see that dremio has tried 10 schema attempts but it keeps throwing me the error on all xlsx files.
Could you please help.