Excel save as html/pdf problem

I have an Excel workbook with several sheets.

I save it as Excel with everything in it, and that is fine.

However, when I export to HTML and PDF, I want the html/pdf file to contain only some of the sheets (which I choose).

How to do that?

My current code:

Code:

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          if (excel)
            {
                if (!System.IO.Directory.Exists(System.IO.Path.Combine(ConfigurationManager.AppSettings["TidsserieExcel"].ToString(), path)))
                    System.IO.Directory.CreateDirectory(System.IO.Path.Combine(ConfigurationManager.AppSettings["TidsserieExcel"].ToString(),path));
                tmp = System.IO.Path.Combine(ConfigurationManager.AppSettings["TidsserieExcel"].ToString(),path, lokation + ".xls");
                files.Add(tmp);
                xlWorkBook.SaveAs(tmp, Excel.XlFileFormat.xlWorkbookNormal, misValue, misValue, misValue, misValue, Excel.XlSaveAsAccessMode.xlExclusive, misValue, misValue, misValue, misValue, misValue);
            }
            if (html)
            {
                if (!System.IO.Directory.Exists(System.IO.Path.Combine(ConfigurationManager.AppSettings["TidsserieHtml"].ToString(), path)))
                    System.IO.Directory.CreateDirectory(System.IO.Path.Combine(ConfigurationManager.AppSettings["TidsserieHtml"].ToString(), path));
                tmp = System.IO.Path.Combine(ConfigurationManager.AppSettings["TidsserieHtml"].ToString(), path, lokation + ".html");
                files.Add(tmp);
                xlWorkBook.SaveAs(tmp, Excel.XlFileFormat.xlHtml, misValue, misValue, misValue, misValue, Excel.XlSaveAsAccessMode.xlExclusive, misValue, misValue, misValue, misValue, misValue);
            }

            if (pdf)
            {
                if (!System.IO.Directory.Exists(System.IO.Path.Combine(ConfigurationManager.AppSettings["TidsseriePdf"].ToString(), path)))
                    System.IO.Directory.CreateDirectory(System.IO.Path.Combine(ConfigurationManager.AppSettings["TidsseriePdf"].ToString(), path));

                xlWorkBook.Worksheets.Select();

                XlFixedFormatType paramExportFormat = XlFixedFormatType.xlTypePDF;
                tmp = System.IO.Path.Combine(ConfigurationManager.AppSettings["TidsseriePdf"].ToString(), path, lokation + ".pdf");
                files.Add(tmp);
                XlFixedFormatQuality paramExportQuality =
                    XlFixedFormatQuality.xlQualityStandard;
                bool paramOpenAfterPublish = false;
                bool paramIncludeDocProps = true;
                bool paramIgnorePrintAreas = true;
                object paramFromPage = Type.Missing;
                object paramToPage = Type.Missing;
                object paramMissing = Type.Missing;
                if (xlWorkBook != null)
                    xlWorkBook.ExportAsFixedFormat(paramExportFormat,
                        tmp, paramExportQuality,
                        paramIncludeDocProps, paramIgnorePrintAreas, paramFromPage,
                        paramToPage, paramOpenAfterPublish,
                        paramMissing);
            }

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Thanks in advance!