<?xml version="1.0" encoding="US-ASCII"?>
<!-- Generated by CompSci Transform (tm) - http://www.compsciresources.com -->
<!-- Created: Fri Mar 27 20:02:19 UTC 2026 -->
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  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#AwardTimingDisclosure" roleURI="http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure"/>
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    <loc xlink:type="locator" xlink:label="ecd_PvpTable" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PvpTable"/>
    <loc xlink:type="locator" xlink:label="PreviousPeerGroupTotalShareholderReturnAmount" xlink:href="tls-20260507.xsd#tls_PreviousPeerGroupTotalShareholderReturnAmount"/>
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