Files with the .ABS extension contain the data of a structural relational database created and serviced by the Absolute Database database engine. It is used by programmers operating in the Delphi programming language for saving data in the created applications. The data can be encrypted and ran using internal memory.

Thanks to the fact that it is contained in a single file, in the integrated Delphi programming environment, the Absolute Database engine is a good alternative to a standardized database engine, namely the BDE – Borland Database Engine.