InfoPath Dev

I need to restrict the file type that can be uploaded into a browser form so that the user can only upload .XLS or .XLSX

 

Any help is appericated.

Out of the box this is a filler only feature offered by InfoPath.  Unfortunately I'm not familiar with another way you can accomplish this in the browser.

You might be able to add a validation rule that checks the filename and fails if it doesn't match your criteria. qRules lets you access attachment name info so you could just set a rule on the field that checks and removes it if the file doesn't have the right extension. To do this without qRules will require adding a little code to get at the filename and extension.