We have an InfoPath form published to an On-Line SharePoint site. Our site allows files up to 250MB in size. However, when we try to attach a file larger than 5MB to our InfoPath form, we get the following error message: "This site says ... the selected file is to large and is causing the form to exceed the amount of allowable resources. Select another file." Our users are attaching CAD or STL files up to 50MB in size. Is there a way to increase the file size limits?