DotnetPoi.Legacy
0.5.0
dotnet add package DotnetPoi.Legacy --version 0.5.0
NuGet\Install-Package DotnetPoi.Legacy -Version 0.5.0
<PackageReference Include="DotnetPoi.Legacy" Version="0.5.0" />
<PackageVersion Include="DotnetPoi.Legacy" Version="0.5.0" />
<PackageReference Include="DotnetPoi.Legacy" />
paket add DotnetPoi.Legacy --version 0.5.0
#r "nuget: DotnetPoi.Legacy, 0.5.0"
#:package DotnetPoi.Legacy@0.5.0
#addin nuget:?package=DotnetPoi.Legacy&version=0.5.0
#tool nuget:?package=DotnetPoi.Legacy&version=0.5.0
DotnetPoi.Legacy
Legacy Office 97–2003 binary format implementations for xls (HSSF), doc (HWPF), and ppt (HSLF).
Install
dotnet add package DotnetPoi.Legacy
<PackageReference Include="DotnetPoi.Legacy" Version="..." />
NuGet automatically resolves transitive dependencies (DotnetPoi.Common, DotnetPoi.POIFS).
Support Status
| Format | Implementation | Status | Description |
|---|---|---|---|
| xls | HSSF | ⚠️ Partial (~35%) | Basic workbook read/write, styles, layout, and OLE/BIFF preservation. |
| doc | HWPF | ⚠️ Partial (~25%) | Main body/header/footer/table text extraction and limited body editing with OLE preservation. |
| ppt | HSLF | ⚠️ Experimental (~12%) | OLE2 open, text extraction, record inventory, and no-op preservation. |
HSSF (Excel 97-2003)
- Supported: String, numeric, boolean, error cells; multiple sheets; basic fonts/styles; column/row sizing; merged regions; freeze panes; reading formula text/values; preservation of macros (VBA), OLE streams, and unknown BIFF records.
- Not yet modeled: Image/shape/chart creation; comment/hyperlink editing; filters; pivots; new formula token writing.
HWPF (Word 97-2003)
- Supported: OLE2 open; FIB parsing; main body text extraction (CLX/piece table); header/footer and table text extraction; basic Range/Paragraph/Run model; bold/italic/size/font; no-op write; append paragraph; simple text replacement; OLE preservation.
- Not yet modeled: Images; footnotes; comments; fields; bookmarks.
HSLF (PowerPoint 97-2003)
- Supported: OLE2 open; stream inventory;
PowerPoint Documentrecord tree scan; slide order; TextChars/TextBytes extraction; no-op write/preservation. - Not yet modeled: New slide creation; shape editing; image insertion; master/layout editing; animations.
Usage scenarios
| If you need… | Install this |
|---|---|
| xls / doc / ppt read/write only | DotnetPoi.Legacy (this package) |
| Legacy binary + formula evaluator | DotnetPoi.Legacy + DotnetPoi.Formula |
| Legacy binary + OOXML (xlsx/docx/pptx) | DotnetPoi.Legacy + DotnetPoi.Ooxml |
| Everything (all formats + formula) | DotnetPoi.All (meta-package) |
License
Apache License 2.0 — same as upstream Apache POI.
Disclaimer
This project is not affiliated with the Apache Software Foundation or the Apache POI project. Apache POI is a registered trademark of the Apache Software Foundation.
| Product | Versions Compatible and additional computed target framework versions. |
|---|---|
| .NET | net5.0 was computed. net5.0-windows was computed. net6.0 was computed. net6.0-android was computed. net6.0-ios was computed. net6.0-maccatalyst was computed. net6.0-macos was computed. net6.0-tvos was computed. net6.0-windows was computed. net7.0 was computed. net7.0-android was computed. net7.0-ios was computed. net7.0-maccatalyst was computed. net7.0-macos was computed. net7.0-tvos was computed. net7.0-windows was computed. net8.0 was computed. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed. net9.0 was computed. net9.0-android was computed. net9.0-browser was computed. net9.0-ios was computed. net9.0-maccatalyst was computed. net9.0-macos was computed. net9.0-tvos was computed. net9.0-windows was computed. net10.0 was computed. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed. |
| .NET Core | netcoreapp2.0 was computed. netcoreapp2.1 was computed. netcoreapp2.2 was computed. netcoreapp3.0 was computed. netcoreapp3.1 was computed. |
| .NET Standard | netstandard2.0 is compatible. netstandard2.1 was computed. |
| .NET Framework | net461 was computed. net462 was computed. net463 was computed. net47 was computed. net471 was computed. net472 was computed. net48 was computed. net481 was computed. |
| MonoAndroid | monoandroid was computed. |
| MonoMac | monomac was computed. |
| MonoTouch | monotouch was computed. |
| Tizen | tizen40 was computed. tizen60 was computed. |
| Xamarin.iOS | xamarinios was computed. |
| Xamarin.Mac | xamarinmac was computed. |
| Xamarin.TVOS | xamarintvos was computed. |
| Xamarin.WatchOS | xamarinwatchos was computed. |
-
.NETStandard 2.0
- DotnetPoi.Common (>= 1.0.0)
- DotnetPoi.POIFS (>= 1.0.0)
NuGet packages (1)
Showing the top 1 NuGet packages that depend on DotnetPoi.Legacy:
| Package | Downloads |
|---|---|
|
DotnetPoi.All
Meta package shell for the complete DotnetPoi surface: OOXML, legacy binary formats, POIFS, and Formula. |
GitHub repositories
This package is not used by any popular GitHub repositories.
| Version | Downloads | Last Updated |
|---|---|---|
| 0.5.0 | 350 | 5/8/2026 |