.NMM File Extension
File TypeSamsung Memo File
What is an NMM file?
An NMM file is a data file created by select Samsung Galaxy mobile phones, such as the Galaxy Trend Plus and S7. It contains all of the memos, which may consist of text, handwritten notes, and graphics, that were created on the phone in the Memo app bundled with the phone.
There is no known program that can open NMM files. Samsung Kies or Smart Switch previously allowed you to backup and restore NMM files, or transfer them to Samsung Notes, which replaced the Memo app on newer Samsung phones. Samsung Notes also would allow you to import NMM files to view memos but the app no longer supports the format.