Office Documents Without Office

using var doc = ExcelDocument.Load("sales-data.xlsx");
    var sheet = doc.WorkSheets[0];
    
    // Read typed data from rows
    var rows = sheet.RowsAs(r => new SalesRecord {
        Region = r.String("Region"),
        Revenue = r.Decimal("Revenue"),
        Growth = r.Double("Growth")
    });
    
    // Add a summary chart
    var chart = sheet.AddChart(ExcelChartType.ColumnClustered);
    chart.Title = "Revenue by Region";
    chart.AddSeries("Revenue", rows.Select(r => r.Revenue));
    
    doc.Save("sales-report.xlsx");

var doc = MarkdownDoc.Create()
        .H1("Release Notes")
        .P("Version 2.0 brings major improvements.")
        .H2("New Features")
        .BulletList(
            "Parallel Excel operations",
            "PowerPoint chart support",
            "AOT-ready CSV module"
        )
        .H2("Performance")
        .Table(t => t.FromSequence(benchmarks,
            ("Scenario", b => b.Name),
            ("Before", b => b.Before),
            ("After", b => b.After)
        ));
    
    var html = doc.ToHtmlFragment();
    File.WriteAllText("release-notes.md", doc.ToString());

New-OfficeWord -FilePath 'Report.docx' {
        WordSection {
            WordParagraph -Text 'Monthly Report' -Style Heading1
            WordParagraph -Text 'Generated with PSWriteOffice'
    
            WordTable -DataTable $SalesData -Style LightGrid
        }
    }
    
    New-OfficeExcel -FilePath 'Data.xlsx' {
        ExcelSheet -Name 'Sales' {
            ExcelTable -DataTable $Records -AutoFilter -AutoFit
        }
        ExcelSheet -Name 'Charts' {
            ExcelChart -Type ColumnClustered -Title 'Revenue'
        }
    }