.EXC File

The exc file extension is related to Microsoft Word and used for files that contain exclusion dictionary data. These exc files were used by some earlier version of Microsoft Word for exclusion dictionary files.

Microsoft Word is a powerful authoring program that gives you the ability to create and share documents by combining a comprehensive set of writing tools with the easy-to-use Microsoft Office Fluent user interface, which is part of Microsoft Office.

How to open:

Probably not meant to be accessed by the user.

How to convert:

Probably cannot be converted to anything else.