documentclass{article}
usepackage[style=authoryear-luh-ipw]{biblatex}

begin{document}

end{document}

... MiKTeX 2.9texlatexbiblatexlbxengli
sh.lbx")

! LaTeX Error: Missing begin{document}.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.

% english-luh-ipw.bbx, Oliver Heins (oheins@sopos.org) 2012--2013

ProvidesFile{english-luh-ipw.lbx}[2013/11/18 v0.3 bibliography localization for use with biblatex 2.x]

InheritBibliographyExtras{english}

DeclareBibliographyExtras{%
  savecommandmkbibvolume
  protecteddefmkbibvolume#1{bibstring{jourvol}adddot~#1}}

UndeclareBibliographyExtras{%
  restorecommandmkbibvolume}

NewBibliographyString{issue}

DeclareBibliographyStrings{%
  inherit          = {english},
  issue            = {issue}{issadddot}},

endinput

DeclareBibliographyStrings{%
  inherit      = {<language>},
  bibstring_1  = {{<short_1>}{<long_1>}},
  bibstring_2  = {{<short_2>}{<long_2>}},
               .
               .
               .
  bibstring_n  = {{<short_n>}{<long_n>}},
}

DeclareBibliographyStrings{%
  inherit          = {german},
  issue            = {{Heft}{Hadddot}},
}

DeclareBibliographyStrings{%
  inherit          = {english},
  issue            = {{issue}{issadddot}},
}