<?xml version="1.0" encoding="US-ASCII"?>  
<!-- Generated by CompSci Transform (tm) - http://www.compsciresources.com -->    
<!-- Created: Tue Mar 03 20:45:26 UTC 2026 -->  
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:xbrldt="http://xbrl.org/2005/xbrldt">  
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#SeriesOnly" roleURI="http://xbrl.sec.gov/oef/role/SeriesOnly"/>     
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default"/> 
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain"/>    
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension"/>     
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member"/>   
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" arcroleURI="http://xbrl.org/int/dim/arcrole/all"/>   
  <definitionLink xlink:role="http://xbrl.sec.gov/oef/role/SeriesOnly" xlink:type="extended">    
    <loc xlink:type="locator" xlink:label="dei_EntityDomain" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/> 
    <loc xlink:type="locator" xlink:label="ck0001547950_S000101315Member" xlink:href="ck0001547950-20260303.xsd#ck0001547950_S000101315Member"/>     
<!-- [WMV6][xui7T4kvowRhtX5AerTHbRFAPXz7AA628u1+SrxNIBt+dxD+9T6VQi1cbFJMhMD8cXdFQr61QL6fvQVaOrpQM+Lw4f7qZ0cXkXeJe1l7tA9dEQD4QBxiPNuIu6HMBRIl6kVM+H8FJgrZenEh22dWKF9JDcS/aEWXs88MPjonblHDqscgwxFb9/KuT/Bg7EcQwAjwbZrkbGCyHm2KjV5ZfHjg3iSiCOB08HXHy24+Fv4mPLDs9vBnHh+jrTsnA2C9OHFc+VEYZdwW+IgWlYm1PYOLl+XrsuBvJnS8K83B/jBXQzW4iVA3MyB+xAM4TCImxibwbFBAIA31woRI0NLQZZo0Ib9vXSuzZykPp3mOMJ4Vzt7IvZE=] CSR-->   
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="dei_EntityDomain" xlink:to="ck0001547950_S000101315Member" order="11" xbrldt:closed="true"/>   
  </definitionLink>     
</linkbase>
