EREngine-config.xml located at Elixir Repertoire\config controls the availability of renderer such as xls, ppt etc as listed above.

For example,

<!--render name="application/vnd.ms-excel" class="com.elixirtech.
  report2.engine.XLSPipeline"/-->

indicates the xls renderer has been disabled. In other words, the xls renderer had been mask off. To enable the renderer, simply remove the comment, as shown below.

<render name="application/vnd.ms-excel" class="com.elixirtech.
  report2.engine.XLSPipeline"/>

EREngine-config.xml also controls the timeout interval for report rendering. Besides general rendering tasks, it can also work in conjunction with JDBC DataSource Timeout, as shown in Elixir Data Designer User Manual > Chapter 3. JDBC Datasource > JDBC Options. Report Timeout will start to function after JDBC DataSource Timeout takes its turn. In this file, uncomment the following command line and make necessary changes upon the timeout value to start using Report Timeout:

<property name="rml.render.timeout" value="60"/>