We have information here about using Android emulators.
Windows users have reported using BlueStacks, MEmu and Nox emulators with good results although there are others available. Which Android OS
technimo.helpshift.com
Reading "between the lines" your share message may be the Android emulator's Share sheet window?
As described in the above link, you set up Drive or use (certain) File managers where those should, in theory, show in the Share window so you can save the file somewhere. (The emulator might already show a file manager in that window?) As mentioned by
@massimobio Dropbox should work also.
(You can save audio, midi, xml, PDF or iReal Pro files or backups this way.)
Look for support FAQs for your emulator related to moving files to and from Android and your PC, either using a shared folder (use the File manager to save to that specific folder) or a media / file browser program to locate and move files between each environment. After moving the file to your PC, you can email, print (PDF), import into your (PCs) DAW or notation program etc.