Aspose.Words XLSXファイルプロセッサー for .NET

using Aspose.Cells; // Engine behind the plugin

// 1) Create a workbook with one worksheet
var wb = new Workbook();
Worksheet sheet = wb.Worksheets[0];
sheet.Name = "Report";

// 2) Populate header + data
sheet.Cells["A1"].PutValue("Product");
sheet.Cells["B1"].PutValue("Qty");
sheet.Cells["C1"].PutValue("Price");
sheet.Cells["D1"].PutValue("Total");

sheet.Cells["A2"].PutValue("Keyboard");
sheet.Cells["B2"].PutValue(12);
sheet.Cells["C2"].PutValue(39.99);
sheet.Cells["D2"].Formula = "=B2*C2";

// 3) Style header
var style = wb.CreateStyle();
style.Font.IsBold = true;
style.ForegroundColor = System.Drawing.Color.AliceBlue;
style.Pattern = BackgroundType.Solid;
var flags = new StyleFlag { FontBold = true, CellShading = true };
sheet.Cells.CreateRange("A1", "D1").ApplyStyle(style, flags);

// 4) Auto-fit and save
sheet.AutoFitColumns();
wb.Save("Report.xlsx", SaveFormat.Xlsx);

using Aspose.Cells;

var load = new LoadOptions(LoadFormat.Xlsx);
using var fs = File.OpenRead("Input.xlsx");
var wb = new Workbook(fs, load);

// Update a value and a formula
Worksheet ws = wb.Worksheets["Summary"] ?? wb.Worksheets[0];
ws.Cells["B5"].PutValue(1250);            // new revenue
ws.Cells["B6"].Formula = "=B5*0.18";     // tax 18%

// Calculate formulas only for this sheet to save time
var calcOpts = new CalculationOptions { CalcStackSize = 2000 };
wb.CalculateFormula(calcOpts);

wb.Save("Updated.xlsx", SaveFormat.Xlsx);

using System.Data;
using Aspose.Cells;

DataTable dt = GetData(); // your source
var wb = new Workbook();
var ws = wb.Worksheets[0];

ws.Cells.ImportDataTable(dt, isFieldNameShown: true, firstRow: 0, firstColumn: 0, insertRows: true);
ws.AutoFitColumns();

wb.Save("DataImport.xlsx", SaveFormat.Xlsx);

var wb = new Workbook();
var ws = wb.Worksheets[0];

// Sample data
ws.Cells["A1"].PutValue("Month");
ws.Cells["B1"].PutValue("Sales");
string[] months = {"Jan","Feb","Mar","Apr"};
int[] sales = {120, 150, 170, 190};
for (int i = 0; i < months.Length; i++) { ws.Cells[i+1,0].PutValue(months[i]); ws.Cells[i+1,1].PutValue(sales[i]); }

// Add chart
int idx = ws.Charts.Add(ChartType.Column, 6, 0, 20, 8);
Chart chart = ws.Charts[idx];
chart.Title.Text = "Monthly Sales";
chart.NSeries.Add("B2:B5", true);
chart.NSeries.CategoryData = "A2:A5";

wb.Save("Chart.xlsx", SaveFormat.Xlsx);

var wb = new Workbook();
var ws = wb.Worksheets[0];

// Allow only whole numbers between 1 and 100 in B2:B100
Validation v = ws.Validations[ws.Validations.Add()];
v.Type = ValidationType.WholeNumber;
v.Operator = OperatorType.Between;
v.Formula1 = "1";
v.Formula2 = "100";
CellArea area = CellArea.CreateCellArea("B2", "B100");
v.AddArea(area);

// Protect sheet but allow editing unlocked cells
ws.Protection = new Protection { AllowEditingContent = true };
wb.Save("Validated.xlsx", SaveFormat.Xlsx);