File Content Extraction 26.1
Viewing SDK Programming Guide

# Determine Format Support

After the file format is extracted, the detection module then uses an initialization file (`kvsdk.ini`) or the Windows registry to determine whether the format is supported by File Content Extraction, and the appropriate structured access layer and reader to load. See View Initialization Information for more information.

The initialization file and Windows registry contain the following information:

- Coded format information. To translate this information, see Translate Format Information.

- The reader associated with each format.

- Initialization information. See View Initialization Information.

Below are some entries from the initialization file. The entries in the initialization file or the Windows registry list each format value, and the reader used to parse that format.

    180=afsr.dll
    232=afsr.dll
    236=htmsr.dll
    272=htmsr.dll
    355=htmsr.dll
    328=foliosr.dll
    294.2.0.9.0=l123sr.dll

For example, the final entry specifies that a Lotus 1-2-3 Spreadsheet file version 9.0 is parsed by the Lotus 1-2-3 reader, `l123sr.dll`.

NOTE: The information in the initialization file and Windows registry applies to all formats except graphics. Detection of graphics formats is handled by an internal module named KeyView Picture Interchange Format (KPIF).

List of Files Required for Redistribution lists the document readers provided with the Viewing SDK.

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Version 26.1 | Last updated January 2026

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Product: File Content Extraction 26.1

Topic Title: Determine Format Support