LibreOffice support HTML input but it is not recognising the clipboard contents as containing HTML. When using Manager’s “Copy to clipboard” button, then LibreOffice’s “paste Special” only offers to paste text which when done puts all the HTML code in one cell.
I believe the clipboard can contain multiple formats of the copied data simultaneously together with labelling of the data type. It appears when using the copy to clipboard button in manager, only html is put in the clipboard and it’s data type is not set so it defaults to plain text.
In Manager manually selecting the reports contents, copying the selection then in LibreOffice “paste special” does enable selection of which data type to paste. Unfortunately it appears line termination is done with line feed not carriage return, so subsequent lines do not align columns when “Paste special” “stripped HTML” is used. “Paste special” “plane text” is not useful as the column delimiter is a space. “Paste special” “Rtf” also isn’t useful as it appears the line feeds are ignored completely.
A work around is to manually add the data type identifier outside of Manager as ries described
or use Manager’s “Export” button at the bottom of the reports which has tab delimited data (not sure if the line delimiter is cr or lf), so imports into spread sheets (without any formatting).
In summary I believe the bug in Manager is the copy to clipboard button is not setting the data type (so it defaults to plane text). An enhancement would be for the copy to clipboard button to save the data in more than one format (with labelling for each).