Convert an XLSForm into a form that you can upload to ODK Aggregate or temporarily preview in a browser.
ODK Aggregate is no longer being updated. ODK Central, its replacement, has built-in XLSForm preview, lets you group forms into projects, and has no limits on form updates. Get started on ODK Cloud or read the docs to self-host.
XLSForm Online has had major improvements. If you have problems updating an existing form in Aggregate, try XLSForm Online v1.x.