public SaveFileResult ReplaceOpenXML([FromBody] dynamic content)
        {
            var pdf            = new PDF();
            var serverAddr     = $"{this.Request.Scheme}://{this.Request.Host}{this.Request.PathBase}/";
            var targetPdfName  = pdf.CreatePDFReport(content, serverAddr);
            var returnResponse = new SaveFileResult();

            returnResponse.FileName = targetPdfName;
            ReportUtils reportUtils = new ReportUtils();

            reportUtils.DeleteOldFiles();

            return(returnResponse);
        }