Found one file extension association related to Google Keep and 1 file format developed specifically for use with Google Keep.
Platform, operating system: Multiplatform
Go to: Google Keep description
Developer: Google Inc.
Google software list & details
Developer / company: Google
Quickly capture what’s on your mind and get a reminder later at the right place or time. Speak a voice memo on the go and have it automatically transcribed. Grab a photo of a poster, receipt or document and easily organize or find it later in search. Google Keep makes it easy to capture a thought or list for yourself, and share it with friends and family.
Note: You can click on any file extension link from the list below, to view its detailed information. The list of extensions used or otherwise associated with the application may not be complete, because many common file extensions on our website, such as jpg (pictures) or txt (text files), can be opened by a large number of applications, or are too general file format. However most, if not all directly associated file extensions should be listed with its appropriate program. Although its likely, that some file extensions may be missing from the list of associated file extensions with the application, yet they can be opened, be part of, or otherwise be associated with the program.
Google Keep default file extension associations
Comparison table of actions that Google Keep can perform with its associated file type beta
This table might not contain all possible associated or supported file types or may contain incorrect data.
If you need more information please contact the developers of Google Keep (Google Inc.), or check out their product website.
File type \ Action