@Field
    public void setExtractAllAlternativesFromMSG(boolean extractAllAlternativesFromMSG) {
        defaultOfficeParserConfig.setExtractAllAlternativesFromMSG(extractAllAlternativesFromMSG);
    }
Some .msg files can contain body content in html, rtf and/or text.
The default behavior is to pick the first non-null value and include only that.
If you'd like to extract all non-null body content, which is likely duplicative,
set this value to true.

@param extractAllAlternativesFromMSG whether or not to extract all alternative parts from
                                    msg files
@since 1.17
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-microsoft-module/src/main/java/org/apache/tika/parser/microsoft/AbstractOfficeParser.java