EPPlus是一个.NET Framework/.NET Core库，用于管理Office Open XML电子表格，通过Nuget 分发。版本 5 支持 3.5 版中的 .NET Framework 和 2.0 版中的 .NET Core。EPPlus与任何其他库（如Microsoft Excel）没有依赖关系。
库的设计考虑到了开发人员。我们的目标一直是，具有 Excel 或任何其他电子表格库知识的开发人员应轻松启动以加快 API 的速度。或者-正如有人说的-说，你告诉胜利的方式！
EPPlus 5/6 中的新闻
|Split worksheet into panes|
|更方便地访问行和列 - Worksheet.Rows, Worksheet.Columns, Range.EntireRow 和 Range.EntireColumn|
|从工作表范围和表格中导出 html/css 新增功能！|
|从工作表区域和表中导出 json 数据 新增功能！|
|支持将 dynamic/ExpandoObject 到工作表和一组新的属性，以扩展 LoadFromCollection 功能。|
|对数据透视表的扩展支持 - 筛选器、计算列和支持共享缓存|
|支持比以前更多的图像类型 - svg, ico 和 webp 新增功能！|
|消除了对 System.Drawing.Common/GDI 的依赖性 - 可在 non-Windows 环境中无缝工作 新增功能！|
- 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 5.3.2 creates the following workbook and writes it to disk in approximately 47 seconds (i7 CPU 1.8 Ghz, 16 GB RAM, SSD, Win10, .NET Core 3.1). It loads the same workbook from disk into an ExcelPackage instance in approximately 32 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
- Document/Printer settings
- 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
- Page breaks
- Split/Freeze/unfreeze panes
- Merge cells
- Autofit columns
- Altering worksheet properties such as gridlines, tab colors, etc.
- Create, modify, delete, hide/unhide cells or entire ranges
- Access to Row and Column properties via the EntireRow and EntireColumn properties
- Sort ranges
- Multiple sort params
- Sort Top to Bottom (by column)
- Sort Left to Right (by row)
- Ascending, Descending or User defined (Custom List) sortorder.
- Updates Sort State in the Office Open XML.
- 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
- Wrap text, text rotations and more
- Named Styles
- Built-in calculation engine with no dependency to Excel or any other library
- Calculate entire workbook, a worksheet or a single range
- Supports 337 of the most common functions
- 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
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
- 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
- Create, read, modify Conditional formatting
- 45 types of conditional formatting supported
- Strongly typed interface for each conditional formatting type
- 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>
- 84 predefined styles
- 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
- 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.
- 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
- 187 different types of shapes supported
- Position, size, border, text, styling, color/gradient/effect/shadow, etc
- Supports adding images from file, stream or a System.Drawing.Image object
- Formats: jpg, gif, png, tiff, bmp, emf (Windows only), wmf (Windows only)
- Supports adding, modifying and removing nine different types of form controls
- Support to connect controls to VBA macros, link to cells and more.
- 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
- Create, read, modify and delete Sparklines
- Load themes from thmx-files
- Modify current theme
- 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.
- Protect workbooks with password
- Open protected workbooks with password
- Protect workbook, worksheets or ranges
- Set workbooks to read-only with a password
- Encrypt/decrypt workbooks
- Supports both Standard (Older office versions) and Agile encryption (Office 2010 and later)
- 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
- 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