A family of Microsoft word processing software products for creating web, email, and print documents.
Hi!
This is a generic error, so we need to understand the problem better.
Does the error appear in just one specific file, or in all files?
Are you opening the file using the "Open" command within Word, or are you opening the file directly (by double-clicking it)?
Does the problem occur with other Office apps, such as Excel?
Are your documents stored in a cloud service like OneDrive?