Hi Jeff,
In your XLS file, the parameters have
allowUpdates=true 1=1
You only should need
allowUpdates=true
the 1=1 is the default query and doesn't not to be there (and, as you noted in your comment, accompanied with the query= ).
Also note that single vs. double quotation marks matter in the case of the query; it should have been
query="1=1"
single quotes must be used for text inside a query, forcing double quotes only to encapsulate the query statement.