Merge XLSB to XLTX Online for Free. Free Online XLSB to XLTX Merger. Merge XLSB to Word, Excel, PPTX, PDF, JPG, HTML, ODS, SVG, XPS and more....Merger XLSX ODS HTML NUMBERS CSV XLTX Merge XLSB to XLTX via Python...to import and export Excel, CSV, OpenOffice, PDF, HTML, image...