Convert Excel files with one Go function. converter.Convert(source, saveOption, sink) turns xlsx into PDF, CSV, HTML, Markdown and 32 total formats — from a concise file-to-file one-liner to fully flexible memory, stream and batch environments.... xlsx → xls , xlsx → xlsb , xlsx → ods , and the templates...Get ( "xlsb" ), datasource . FilePathSink ( "binary.xlsb" )) //...