XLSForm Online is an online tool to simplify the creation of forms. Forms designed with Excel can be converted to XForms for use with ODK tools. For offline conversion, use XLSForm Offline.
Need help? Read the docs. If that doesn’t help, ask on the forum.
XLSForm Online has had major improvements. If you have problems with this version, file a support request and then try the previous version (v1.x).