Merge SPREADSHEETML to MHT Online for Free. Free Online SPREADSHEETML to MHT Merger. Merge SPREADSHEETML to Word, Excel, PPTX, PDF, JPG, HTML, ODS, SVG, XPS and more....Open NuGet package manager, search for and install. You may also... HTML, ODS, CSV, SVG, JSON, WORD, PPT and more, thus making it...