/LoadLabels for imports

<..html latex coauthor ..>
\def\LoadLabels{\@ifnextchar[{\LD:lbls}{\LD:lbls[]}}
\def\LD:lbls[#1]#2{%
    <.load xrefs for Link .>%
    {\let\bibdata=\@gobble
     \def\@newl@bel##1##2{\:newl@bel{##1}{#1##2}}%
     \let\@writefile\@gobbletwo
     \catcode‘\@=11       \get:input{#2.aux}%
     \catcode‘\@=12  }}
-_-_-

\newlabel already given in LaTeX

<..load xrefs for Link ..>
\if !#1!%
    \ld:flxrf{#2}{}%
\else
    \LoadRef-[)F]{#2}{)F#1##1}%
    \LoadRef-[)Q]{#2}{)Q#1##1}%
\fi
-_-_-

<..html latex coauthor ..>+
\def\RefLabel#1#2{{%
    \Configure{XrefFile}{#1}%
    \def\file:id{-1}%
    \ref{#1#2}}}
-_-_-

The above doesn’t work always. Try

*** filea.tex ***

\documentclass{article}

\usepackage{tex4ht}

\begin{document} \LoadLabels{fileb}

\section{a...a} \ref{x} \end{document}

*** fileb.tex ***

\documentclass{article}

\usepackage{tex4ht}

\begin{document}

\section{b...b} \label{x} \end{document}

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