How to open WinRAR split archive part 1 .9m1 files
Have you had trouble opening the 9m1 file on your computer? What are 9m1 files? We explain what they are and recommend software that we know will open them.
What is 9m1 file?
A 9m1 file extension is related to the WinRAR archive files.
WinRAR split archive part 1 description
The 9m1 file extension is reported to have been used for some sort of RAR split archives. Most likely renamed by some web service or program for their use. 9m1 is first part of archive (9m2, 9m3...etc.).
Suggested software to open 9m1 file

WinRAR
One of the oldest and most popular shareware file archiver and data compression utility