This is similar to https://bugs.freedesktop.org/show_bug.cgi?id=77213.
LibreOffice Writer (or should I say unoconv) should be able to open and edit .MHT files, Like M$ Word can. Right now, I have to open the .MHT file with Word, save it as .DOC and open it using LibreOffice to get .MHT files to work with LibreOffice. LibreOffic should support .MHT (opening and saving as) out of the box.
My version of LibreOffice: v18.104.22.168 (Build ID: 62ad5818884a2fc2e5780dd45466868d41009ec0).
I can't either open these .mht files With LO 22.214.171.124 under Windows 7 Home Premium.
I set status no New and Importance to enhancement.