ISAM database
File type: Database file
An isam file is a database file associated with the Indexed Sequential Access Method (ISAM).
This file type is used with OpenAccess SDK on Microsoft Windows.
File type category:
Database file
Date updated: October 16, 2026
Indexed Sequential Access Method is a database access method originally developed for IBM mainframe computers. It stores records sequentially while maintaining indexes that allow applications to locate records more quickly.
An isam file contains database data used by an ISAM-based application, along with information used to access the records through indexes. It belongs to the application's data files rather than being a general-purpose interchange format.
OpenAccess SDK for Microsoft Windows is the software associated with this file type. ISAM files are most commonly encountered in applications or systems that rely on OpenAccess SDK.
Open an isam file with OpenAccess SDK on Microsoft Windows. The file may need to remain with any related database files so the software can locate its indexes and data.
An ISAM database file is not normally readable as a document in a text editor. If OpenAccess SDK does not open it directly, use the application that created or manages the database.
Open the isam file through OpenAccess SDK or the associated application and export the database data to a supported format, if that application provides an export function. Compatible tools may also be able to export the file.
Exporting the records does not necessarily preserve the original ISAM indexes or other database-specific features. Keep a copy of the original file before attempting an export.
Software applications that can open isam files:
Microsoft Windows
Software applications that can edit isam files:
Microsoft Windows
Software capable of saving isam files:
Microsoft Windows
Software apps that create isam files:
Microsoft Windows
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