Android: You can either open the SHAREit app and click the folder icon marked LOCAL on the top of the app or, if you have a file manager, find the SHAREit folder and you’ll see all the files that you have transferred.
PC: SHAREit will create a destination folder within your Download folder called SHAREit for all transferred files.
iPhone: You can find your files in the “My Files” section and either open it in the app, share it using another app, or save it to your files.