An ati file extension is related to the Microsoft Office Accounting, a discontinued software. An ati file stores compressed backup.
ATI file extension - Microsoft Office Accounting updated company data
What is ati file? How to open ati files?
File type specification:
The ati file extension is associated with Microsoft Office Accounting, a now discontinued program for integration with online banking systems, developed by Microsoft Corporation.
The ati files contain compressed accounting database backup saved by the application.
This ati file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.