An $ac file extension is related to the $&Sense an accounting software. An $ac file stores data.
There is one other file type using
the $AC file extension!
.$ac - Autodesk AutoCAD autosave
$AC file extension - $&Sense data
What is $ac file? How to open $ac files?
File type specification:
The $ac file extension is associated with the $&Sense old accounting software for MS-DOS operating system.
The $ac file contains various accounting and financial data saved in $&Sense data file format.
There isn't known other accounting software that is able to open .$ac accounting files. To open these files you need to use $&Sense.
This $ac 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.