a. (§21.81) Metadata
“Metadata is information about a particular data set which may describe, for example, how, when, and by whom it was received, created, accessed, and/or modified and how it is formatted. Some metadata, such as file dates and sizes, can easily be seen by users; other metadata can be hidden or embedded and unavailable to computer users who are not technically adept.”
United States v. Wilkins, No. 15-00232-01-CR-W-HFS, 2016 WL 2616497, at *4–5 (W.D. Mo. Apr. 8, 2016) (quoting In re Search of 3817 W. W. End, First Floor Chicago, Ill. 60621, 321 F. Supp. 2d 953, 956 n.1 (N.D. Ill. 2004)). Application metadata is generated by the software that creates a file, and it shows editing...