However tin I make an Excel spreadsheet with C# with out requiring Excel to beryllium put in connected the device that's moving the codification?
You tin usage a room referred to as ExcelLibrary. It's a escaped, unfastened origin room posted connected Google Codification:
This seems to be to beryllium a larboard of the PHP ExcelWriter that you talked about supra. It volition not compose to the fresh .xlsx format but, however they are running connected including that performance successful.
It's precise elemental, tiny and casual to usage. Positive it has a DataSetHelper that lets you usage DataSets and DataTables to easy activity with Excel information.
ExcelLibrary appears to inactive lone activity for the older Excel format (.xls information), however whitethorn beryllium including activity successful the early for newer 2007/2010 codecs.
You tin besides usage EPPlus, which plant lone for Excel 2007/2010 format information (.xlsx information). Location's besides NPOI which plant with some.
Location are a fewer identified bugs with all room arsenic famous successful the feedback. Successful each, EPPlus appears to beryllium the champion prime arsenic clip goes connected. It appears to beryllium much actively up to date and documented arsenic fine.
Besides, arsenic famous by @АртёмЦарионов beneath, EPPlus has activity for Pivot Tables and ExcelLibrary whitethorn person any activity (Pivot array content successful ExcelLibrary)
Present are a mates hyperlinks for speedy mention:
ExcelLibrary - GNU Lesser GPL
EPPlus - GNU (LGPL) - Nary longer maintained
EPPlus 5 - Polyform Noncommercial - Beginning Whitethorn 2020
NPOI - Apache Licence
Present any illustration codification for ExcelLibrary:
Present is an illustration taking information from a database and creating a workbook from it. Line that the ExcelLibrary codification is the azygous formation astatine the bottommost:
//Create the data set and tableDataSet ds = new DataSet("New_DataSet");DataTable dt = new DataTable("New_DataTable");//Set the locale for eachds.Locale = System.Threading.Thread.CurrentThread.CurrentCulture;dt.Locale = System.Threading.Thread.CurrentThread.CurrentCulture;//Open a DB connection (in this example with OleDB)OleDbConnection con = new OleDbConnection(dbConnectionString);con.Open();//Create a query and fill the data table with the data from the DBstring sql = "SELECT Whatever FROM MyDBTable;";OleDbCommand cmd = new OleDbCommand(sql, con);OleDbDataAdapter adptr = new OleDbDataAdapter();adptr.SelectCommand = cmd;adptr.Fill(dt);con.Close();//Add the table to the data setds.Tables.Add(dt);//Here's the easy part. Create the Excel worksheet from the data setExcelLibrary.DataSetHelper.CreateWorkbook("MyExcelFile.xls", ds);Creating the Excel record is arsenic casual arsenic that. You tin besides manually make Excel information, however the supra performance is what truly impressed maine.
If you are blessed with the xlsx format, attempt my room, EPPlus. It began with the origin from ExcelPackage, however since grew to become a entire rewrite.
It helps ranges, compartment styling, charts, shapes, photos, named ranges, AutoFilter, and a batch of another material.
You person 2 choices:
EPPlus Four, licensed nether LGPL (first subdivision, developed till 2020)
EPPlus 5, licensed nether Polyform Noncommercial 1.Zero.Zero (since 2020).
From the EPPlus 5 readme.md:
With the fresh licence EPPlus is inactive escaped to usage successful any circumstances, however volition necessitate a commercialized licence to beryllium utilized successful a commercialized concern.
EPPlus web site: https://www.epplussoftware.com/
Creating Excel records-data programmatically utilizing C with out relying connected Microsoft Agency tin beryllium a communal demand, particularly once deploying functions to environments wherever Agency isn't put in. This attack presents higher power complete the record procreation procedure, avoids licensing constraints, and frequently leads to amended show. This article explores assorted libraries and strategies to make some .XLS and .XLSX records-data efficiently successful C, guaranteeing compatibility and ratio. We’ll expression astatine fashionable choices, their execs and cons, and supply codification examples to acquire you began. Fto's dive into producing Excel records-data successful C with out Microsoft Agency.
Producing Excel Records-data successful C With out Agency Interop
1 of the archetypal issues once creating Excel records-data successful C with out Microsoft Agency is selecting the correct room. Agency Interop, which requires Microsoft Agency to beryllium put in, is frequently cumbersome and not appropriate for server-broadside functions. Respective 3rd-organization libraries supply alternate options, permitting you to make .XLS and .XLSX records-data effectively and reliably. These libraries summary the complexities of the Excel record format, offering a easier API to make spreadsheets, adhd information, and use formatting. By utilizing these libraries, you tin guarantee your exertion tin make Excel records-data careless of the situation's Agency set up position.
Utilizing EPPlus to Make .XLSX Records-data
EPPlus is a fashionable and almighty .Nett room for creating and manipulating Excel .XLSX records-data. It's unfastened-origin and doesn't necessitate Microsoft Agency to beryllium put in. EPPlus offers an casual-to-usage API to make worksheets, adhd information, format cells, and equal make charts. It helps a broad scope of Excel options, making it appropriate for some elemental and analyzable spreadsheet procreation duties. Due to the fact that it plant straight with the Unfastened XML format, it's businesslike and scalable. It's a large prime for functions that demand to make Excel stories oregon export information successful a structured format.
using OfficeOpenXml; using System.IO; public class ExcelGenerator { public static void CreateExcelFile(string filePath) { ExcelPackage.LicenseContext = LicenseContext.NonCommercial; using (ExcelPackage excel = new ExcelPackage()) { excel.Workbook.Worksheets.Add("Sheet1"); var worksheet = excel.Workbook.Worksheets["Sheet1"]; worksheet.Cells["A1"].Value = "Hello, World!"; FileInfo excelFile = new FileInfo(filePath); excel.SaveAs(excelFile); } } } Utilizing NPOI to Grip .XLS and .XLSX Records-data
NPOI is different fantabulous unfastened-origin room for running with Excel records-data successful C. It helps some the older .XLS (BIFF format) and the newer .XLSX (Unfastened XML format). NPOI is a larboard of the Apache POI task for Java, truthful it's mature and fine-documented. This room permits you to make, modify, and publication Excel records-data with out needing Microsoft Agency. Its blanket characteristic fit makes it appropriate for a broad scope of duties, together with producing stories, importing information from Excel, and changing betwixt antithetic Excel codecs. NPOI GitHub Repository offers extended documentation and examples.
Nevertheless to find erstwhile to utilization Node.js? Understanding the strengths and weaknesses of all room is cardinal to task occurrence.
using NPOI.HSSF.UserModel; // For .XLS using NPOI.XSSF.UserModel; // For .XLSX using System.IO; public class ExcelGenerator { public static void CreateXLSFile(string filePath) { HSSFWorkbook workbook = new HSSFWorkbook(); HSSFSheet sheet = (HSSFSheet)workbook.CreateSheet("Sheet1"); HSSFRow row = (HSSFRow)sheet.CreateRow(0); HSSFCell cell = (HSSFCell)row.CreateCell(0); cell.SetCellValue("Hello, World!"); using (FileStream file = new FileStream(filePath, FileMode.Create, FileAccess.Write)) { workbook.Write(file); } } public static void CreateXLSXFile(string filePath) { XSSFWorkbook workbook = new XSSFWorkbook(); XSSFSheet sheet = (XSSFSheet)workbook.CreateSheet("Sheet1"); XSSFRow row = (XSSFRow)sheet.CreateRow(0); XSSFCell cell = (XSSFCell)row.CreateCell(0); cell.SetCellValue("Hello, World!"); using (FileStream file = new FileStream(filePath, FileMode.Create, FileAccess.Write)) { workbook.Write(file); } } } Evaluating EPPlus and NPOI
Selecting betwixt EPPlus and NPOI relies upon connected your circumstantial necessities. EPPlus is mostly quicker and much representation-businesslike once running with .XLSX records-data, acknowledgment to its optimized Unfastened XML implementation. NPOI, connected the another manus, helps some .XLS and .XLSX codecs, making it a versatile prime if you demand to grip older Excel records-data. Some libraries message extended options for formatting, formulation, and charts, however their APIs disagree. See the pursuing examination to aid you determine which room is champion suited for your task.
| Characteristic | EPPlus | NPOI |
|---|---|---|
| Record Format Activity | .XLSX | .XLS, .XLSX |
| Show | Mostly quicker for .XLSX | Somewhat slower, particularly for ample .XLSX records-data |
| API | Much contemporary and simpler to usage | Much analyzable, reflecting its Java practice |
| Licensing | Twin Licence (GPL/Commercialized) | Apache Licence 2.Zero |
| Assemblage Activity | Progressive assemblage, bully documentation | Ample assemblage, extended documentation |
"Selecting the correct implement for the occupation is important successful package improvement. EPPlus and NPOI some message strong options for Excel record procreation, however knowing their strengths and weaknesses volition pb to much businesslike and maintainable codification."
Champion Practices for Excel Procreation successful C
Once producing Excel records-data successful C, pursuing champion practices ensures your codification is businesslike, maintainable, and dependable. Ever grip exceptions decently to forestall exertion crashes. Usage parameterized queries oregon information binding to debar hardcoding values straight into the Excel record, which tin pb to errors and safety vulnerabilities. Optimize representation utilization, particularly once dealing with ample datasets, by utilizing methods similar streaming oregon lazy loading. Eventually, totally trial your Excel procreation codification to guarantee it produces the anticipated output and handles border circumstances gracefully. Pursuing these practices volition consequence successful strong and advanced-choice Excel procreation options.
- Grip exceptions decently utilizing attempt-drawback blocks.
- Usage parameterized queries oregon information binding to debar hardcoding values.
- Optimize representation utilization for ample datasets.
- Totally trial your codification with assorted situations.
Successful decision, producing Excel records-data successful C with out putting in Microsoft Agency is achievable and businesslike with the correct libraries and practices. EPPlus and NPOI are fantabulous choices, all with its strengths and appropriate usage circumstances. By knowing their capabilities and pursuing champion practices, you tin make strong and scalable Excel procreation options. NuGet Bundle Director is a large assets to negociate these libraries. Retrieve to take the room that champion suits your task's necessities and see elements similar show, record format activity, and easiness of usage. With the cognition gained from this article, you're fine-outfitted to deal with Excel procreation duties successful your C functions. See exploring further formatting choices and precocious options supplied by these libraries to additional heighten your Excel procreation capabilities. Larn Much Astir C Improvement.
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