mv home.htm home.html
mv new.htm new.html
mv os_cobnd.htm os_cobnd.html
mv os_harju.htm os_harju.html
mv os_morse.htm os_morse.html
mv os_pef.htm os_pef.html
mv os_qchem.htm os_qchem.html
mv os_salt.htm os_salt.html
mv os_torg.html os_torg.html
mv index.htm index.html
mv os_angg.htm os_angg.html
mv os_cov.htm os_cov.html
mv os_molf.htm os_molf.html
mv os_non.htm os_non.html
mv os_pre.htm os_pre.html
mv os_qcpro.htm os_qcpro.html
mv os_sol.html os_sol.html