EPPlus 6/7

Caratteristiche e panoramica tecnica

EPPlus

EPPlus è una libreria .NET Framework/.NET Core per la gestione di fogli di calcolo Office Open XML, distribuita tramite Nuget . Vedere il collegamento seguente per i framework .NET supportati. EPPlus non ha dipendenze da nessun'altra libreria come Microsoft Excel.

La libreria è stata progettata tenendo presente lo sviluppatore. Il nostro obiettivo è sempre stato che uno sviluppatore con conoscenza di Excel o di qualsiasi altra libreria di fogli di calcolo dovrebbe facilmente ottenere fino a velocizzare l'API. O - come qualcuno ha detto - intelliri la tua strada verso la vittoria!

Notizie in EPPlus 5/6/7

Worksheets/Ranges

	Split worksheet into panes
	Accesso più semplice a righe e colonne - Worksheet.Rows, Worksheet.Columns, Range.EntireRow e Range.EntireColumn
	Nuova funzionalità di Fill e metodo di Copy migliorato su Ranges.
	Inserisci / Elimina intervalli in fogli di lavoro e righe / colmi nelle tabelle

Importazione/Esportazione

	Esportare html/css da intervalli di fogli di lavoro e tabelle
	Esportare dati json da intervalli di fogli di lavoro e tabelle
	Supporto per l'esportazione di dati da fogli di lavoro a file e DataTable
	Supporto per l' dynamic/ExpandoObject di dati nei fogli di lavoro e un nuovo set di attributi che estende le funzionalità del LoadFromCollection appropriato.

Tavoli/Tabelle pivot/Slicers

	Filtri dei dati di tabelle e tabelle pivot
	Stili personalizzati di tabella, tabella pivot e filtro dei dati
	Stile della tabella pivot tramite aree pivot
	Supporto esteso per le tabelle pivot- Filtri, colonne calcolate e supporto per le cache condivise

Calcolo della formula

Formule di matrice dinamiche, calcoli pivot, 450+ funzioni supportate, prestazioni migliori e molti altri miglioramenti Nuovo!

Miglioramenti generali

	Supporta più tipi di immagini rispetto a prima, svg, ico e webp
	Rimossa la dipendenza da System.Drawing.Common/GDI - funziona perfettamente in ambienti non-Windows
	Metodi asincroni per le operazioni di I/OAsync methods for I/O operations
	Formattazione condizionale: è stato migliorato il supporto per le barre dati, i set di icone personalizzati e i riferimenti incrociati ai fogli di lavoro. Nuovo!
	Centinaia di problemi risolti e miglioramenti minori

Varie nuove funzionalità

	Supporta tutti i tipi di grafico di Excel 2019 con il nuovo stile moderno
	Commenti in thread con supporto per le menzioni
	Temi, Filtri, Ignorare gli errori
	Supporto per i controlli modulo e il raggruppamento dei disegni
	Collegamenti esterni
	Ordinamento avanzato : ordinamento dello stato, ordinamento e ordinamento automatico da sinistra a destra e personalizzati nelle tabelle pivot

Funzionalità supportate

General features

Create, read and modify Office Open XML workbooks (xslx and xlsm)
Supports both .NET Framework and .NET Core. No difference in feature set between the frameworks.
Provides an easy to use, strongly typed, programming interface, which is closely related to the well-known Excel VBA API.
Managed code only, no dependencies to Microsoft Excel
Battle-hardened codebase after many years as the worlds most downloaded .NET library for managing spreadsheets. Quality ensured by thousands of unit-tests.
The source code for EPPlus is openly available on Github , distributed under the Polyform Noncommercial license

Performance (large workbook)

EPPlus 6.2.10 creates the following workbook and writes it to disk in approximately 32 seconds (i9 CPU, 2.50 GHz, 64 GB RAM, SSD, Win11, .NET Core 6). It loads the same workbook from disk into an ExcelPackage instance in approximately 22 seconds.

200 columns
100,000 rows
50% of the data written to the cells are integers, 50% are strings with a length of 36 characters
Workbook size: 65 Mb

Source code for the test

Feature list

Workbook
- Document/Printer settings
Worksheets
- Supports 1,048,576 rows and 16,384 columns
- Add, remove, re-order, rename, hide/unhide worksheets in a workbook
- Copy worksheets within a workbook or to another workbook with maintained styling and shifting of addresses/references.
- Print areas
- Group/ungroup/collapse/expand rows and columns
- Header/Footer
- Page breaks
- Split/Freeze/unfreeze panes
- Merge cells
- Autofit columns
- Altering worksheet properties such as gridlines, tab colors, etc.
Cell Ranges
- Create, modify, delete, hide/unhide cells or entire ranges
- Access to Row and Column properties via the EntireRow and EntireColumn properties
- Sort ranges
- Insert/delete ranges - depending addresses will be shifted.
- Copy ranges to a new address with maintained styling and addresses/reference shifting within a workbook or to another workbook. Exclude different cell properties in the copy operation.
- Copy styles only.
- Fill ranges
- Named ranges
- The cell store supports IEnumerable, so Cells/Ranges can be queried with Linq
Cell Styling
- Number
- Alignment
- Font
- Fill
- Border
- Protection
- Wrap text, text rotations and more
- Named Styles
Formula calculation
- Built-in calculation engine with no dependency to Excel or any other library
- Calculate entire workbook, a worksheet or a single range
- Supports 452 functions
- Supports dynamic array formulas and legacy arrayformulas
- Supports Precision as Displayed in calculations (numeric cell values will be rounded according to the cell's number format).
- Calculates External links
- Support for named ranges and the R1C1 format.
- Add custom functions in runtime
Import/export data to and from worksheets
- Import data into a formatted table from enumerables of objects, arrays, DataSets, DataReaders, text-files, etc., with just one line of code.
- Export data to csv files, strings, json, html/css, data tables, IEnumerable<T> or streams with many configuration parameters
Supports load and save from/to both files and streams
- Can create workbooks in a web application and write to the response stream without file access.
- Get workbook as byte-array
- Supports async/await
Templates
Auto filters/Table Filters
- Create, read, modify, apply and delete filters of the types below:
- - Value filters
  - Date/Time filters
  - Custom filters
  - Top 10 filters
  - Dynamic filters
Data validation
- Create, read, modify, delete Data validations
- Types of validations supported: Integer (whole in Excel), Decimal, List, Date, Time, Any and Custom.
- Strongly typed interface for each validation type
Conditional Formatting
- Create, read, modify Conditional formatting
- 45 types of conditional formatting supported
- Strongly typed interface for each conditional formatting type
Tables
- 60 predefined styles
- Create and modify custom table styles from scratch or using a built-in style as template.
- Sort table with updated sort state
- Support for adding and deleting rows/columns (with shifting)
- Total row with predefined functions (supported by the built-in Formula calculation)
- Adding, modifying and applying filters
- Adding, modifying or removing table slicers
- Export table to a System.Data.DataTable
- Export table to a JSON
- Export table to html/css
- Export table to an IEnumerable<T>
Pivot Tables
- 84 predefined styles
- Support for the GETPIVOTDATA function in calculations.
- Support for Pivot table calculations
- Create and modify custom pivot table styles from scratch or using a built-in style as template.
- Style your pivot table using pivot areas
- Add, modify or remove row, column, page and data fields.
- Support for 12 different data field functions.
- Support for numeric and date grouping
- Adding calculated fields
- Support for adding, modifying filters.
- Adding, modifying or removing pivot table slicers
Slicers
- Adding, modifying or removing table- and pivot table- slicers
- 14 predefined styles
- Create and modify custom slicer styles from scratch or using a built-in style as template.
Hyperlinks
Comments
- Create, read, modify and delete comments (in later Excel versions renamed to Notes)
- Rich-text supported
- Threaded comments with support for mentions, resolve/re-open threads
Shapes
- 187 different types of shapes supported
- Position, size, border, text, styling, color/gradient/effect/shadow, etc
Pictures
- Supports adding images from file or stream/byte array
- Formats: jpg, gif, png, tiff, bmp, emf, wmf, svg, ico, webp
Form Controls
- Supports adding, modifying and removing nine different types of form controls
- Support to connect controls to VBA macros, link to cells and more.
Charts
- Support for all Excel 2019 chart types
- Full support for modern chart styling
- Load charts using crtx-files
- Strongly typed classes for the different chart types
Sparklines
- Create, read, modify and delete Sparklines
- Line
- Column
- Win/loss
Themes
- Load themes from thmx-files
- Modify current theme
External Links
- Updating the external workbook cache (xlsx, xlsm and xlst).
- Adding references to external workbooks.
- Breaking links to external workbooks.
- Retaining OLE and DDE links (available read only).
- Formula calculation via the external workbook cache or via loading and calculating the external package directly.
Protection
- Protect workbooks with password
- Open protected workbooks with password
- Protect workbook, worksheets or ranges
- Set workbooks to read-only with a password
Encryption
- Encrypt/decrypt workbooks
- Supports both Standard (Older office versions) and Agile encryption (Office 2010 and later)
VBA
- Create, read, delete, modify VBA code/modules
- Sign VBA code with certificates, supports Legacy, Agile and V3 signature. Supports 5 different hash algorithms for the signature.
- Password protect VBA projects
Supported formats
- Reads and writes xlsx, xlsm. Please note that EPPlus does not support the xlsx Strict format.
- Reads xltx, crtx, thmx
- Reads and writes txt, csv via the LoadFromText and SaveToText methods

Code for the performance test:

                
using OfficeOpenXml;
using System.Diagnostics;

var fileInfo = new FileInfo("c:\\Temp\\EPPlus_PerfTest.xlsx");
if (File.Exists(fileInfo.FullName)) File.Delete(fileInfo.FullName);

ExcelPackage.LicenseContext = OfficeOpenXml.LicenseContext.NonCommercial;
Console.WriteLine("Creating package");

var sw = new Stopwatch();
sw.Start();
// since we are in a sync context, wait for the async task to finish...
WriteToDisk(sw, fileInfo).Wait();
sw.Stop();
Console.WriteLine(" Total seconds writing data: " + sw.Elapsed.TotalSeconds);
Console.WriteLine("Loading package...");
sw.Reset();
sw.Start();
LoadFromDisk(fileInfo).Wait();
sw.Stop();
Console.WriteLine(" Total seconds loading data: " + sw.Elapsed.TotalSeconds);

static async Task LoadFromDisk(FileInfo fileInfo)
{
    using var package = new ExcelPackage();
    await package.LoadAsync(fileInfo);
    Console.WriteLine("Cell GR100000: " + package.Workbook.Worksheets[0].Cells["GR100000"].Value);
}

static async Task WriteToDisk(Stopwatch sw, FileInfo fileInfo)
{
    using var package = new ExcelPackage(fileInfo);
    var sheet = package.Workbook.Worksheets.Add("Test");
    var range = sheet.Cells[1, 1, 100000, 200];
    var toCol = range.End.Column;
    var toRow = range.End.Row;
    for (var row = 1; row <= toRow; row++)
    {
        for (var col = 1; col <= toCol; col++)
        {
            if (col % 2 == 0)
            {
                range[row, col].Value = row + col;
            }
            else
            {
                range[row, col].Value = "abc123abc123abc123abc123abc123abc123";
            }
        }
    }
    Console.WriteLine(" Data written to cell store: " + sw.Elapsed.TotalSeconds);
    await package.SaveAsync();
}

EPPlus 6/7

Caratteristiche e panoramica tecnica

Caratteristiche e panoramica tecnica

EPPlus

Notizie in EPPlus 5/6/7

Worksheets/Ranges

Importazione/Esportazione

Tavoli/Tabelle pivot/Slicers

Calcolo della formula

Miglioramenti generali

Varie nuove funzionalità

Funzionalità supportate

General features

Performance (large workbook)

Feature list

Conditional formatting

Performance test

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