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 → ods , and the templates xltx / xltm — still one Convert ...Get ( "xltx" ), datasource . FilePathSink ( "template.xltx" )) //...