File Content Extraction 26.1
Filter SDK Java Programming Guide

# Core Files

The following core files can be redistributed with your application.

File | Description
--- | ---
`filter_dotnet.dll` | The .NET API.
`filter_impl.*` | .NET API internal interface.
`formats.ini` | Configuration file. For more information about this file, see File Formats and Document Readers.
`javaapi/KeyView.jar` | The Java API. NOTE: This file can be found at the path `javaapi/KeyView.jar`, from the root directory of the SDK.
`*KeyViewFilter.*` | Java API internal interface.
`kpifcnvt.*` | Graphics utilities.
`kpifutil.*` | Graphics utilities.
`kvfilter.*` | Filter C API.
`kvolefio.*` | OLE parser.
`kvutil.*` | Internal utilities.
`kvxpgsa.*` | Presentation graphic internal interface.
`kvxsssa.*` | Spreadsheet internal interface.
`kvxtract.*` | File Extraction C API.
`kvxwpsa.*` | Word processing internal interface.
`kvzip.*` | Zip writer.
`kwad.*` | File format detection module.
`txtcnv.*` | Text writer.
`vcredist/*` | (Windows platforms only) Microsoft Visual C++ Redistributable Packages. For more information about these files, see Software Dependencies. NOTE: The `vcredist` folder is located at the root of the SDK, and not in the `bin` directory.

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Version 26.1 | Last updated January 2026

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Product: File Content Extraction 26.1

Topic Title: Core Files