Free online AAC to ABC converter

What the AAC format is

In the Databases category, AAC refers to an application-specific database file rather than a standardized exchange format. The file may contain tables, indexes, relationships, field definitions, and application-specific metadata; the exact structure depends on the program that created it.

You normally encounter an AAC file when exporting or backing up data from the associated database program. Because the .aac extension does not identify one universal database engine, the creating application or its documentation is needed to determine the schema and supported export options.

What the ABC format is

ABC is also an application-specific database format in this category. Programs that use .abc files may store records and indexes in a proprietary structure that other database software cannot open directly.

ABC is useful when the destination application requires that native format. Its practical advantage is compatibility with that application’s record model and features, not general portability; CSV, SQL, or another documented interchange format is usually better for long-term archiving.

How to convert AAC to ABC

1. Make a backup of the original database.aac. Do not rename the extension and expect the destination program to recognize it.
2. Identify the application that created the AAC file. If the file came from a backup, restore it in that application before attempting an export.
3. For an online conversion, open the AAC-to-ABC converter on 101convert.com, upload the file, choose ABC as the output format, start the conversion, and save the resulting database.abc. Do not upload databases containing confidential or regulated data unless the service’s handling policy is acceptable.
4. Open the converted file in the ABC-compatible application and check record counts, field values, dates, indexes, relationships, attachments, and special characters.
5. If direct conversion is unavailable, use the AAC application’s File → Export function to create CSV, SQL, or another format supported by the ABC application. Then use the destination program’s File → Import function and map each source column to the correct ABC field.

Quality, compatibility, and limitations

Conversion can preserve ordinary records while losing proprietary indexes, queries, forms, permissions, calculated fields, attachments, or application settings. A successful download or import therefore does not prove that the database is fully equivalent.

Check character encoding when names or non-English text are involved, and verify date, time, decimal, Boolean, and null-value handling after import. Rebuild indexes and relationships in the ABC application if the converter or intermediary format cannot represent them. If no tool recognizes the particular AAC variant, obtain an export from the original database software; a generic binary converter cannot reliably infer an undocumented schema.