DA1 File

What are DA1 files and how to open them

Are you having problems opening a DA1 file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your DA1 files.

What is a DA1 file?

A .DA1 file is a Db_VISTA Data file.

Db_VISTA Data files store databases created by the db_VISTA system, an early database management system developed by Raima (originally called RaimaDB). These files hold complete database contents - including records stored in the network-model layout, structure definitions, indexes, and related data - used by applications programmed in C that must manipulate structured, high-performance data directly from disk without needing SQL.

db_VISTA produces these files when the database is saved or otherwise persisted; applications link against the db_VISTA library to perform operations like opening, querying via keys and sets, inserting or modifying records, and closing the database. When in use, the system reads the data structures and indexes from the files to locate or update records efficiently.

Files begin with a signature string identifying the format. At byte offset 12 of the file's header appears the ASCII text "db_VISTA", and the file contains the keyword "DB_VISTA" as part of its metadata. Another common identifier is a zero byte run at the very start of the file followed by these signatures.

How to open DA1 files

Important: Different programs may use files with the DA1 file extension for different purposes, so unless you are sure which format your DA1 file is, you may need to try a few different programs.

We have not yet verified any programs for Windows that work with this specific file format. If you know one, please use the 'Suggest a program' link below. Thanks!

Last updated: September 21, 2026

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