How do I select a file/folder or multiple files/folders on my Android device?

List view: You press and hold a file to select it and a check mark will appear next to it when it is selected. To select multiple files press on as many files as you want to select and check marks will appear next to all of the selected files. OR you press the More options menu icon in the upper right corner of the screen and press Select. You press on the file or multiple files you want to select and check marks will appear next to all of the selected files. You can also choose the Select all option from the More options menu to select all of the files at once.

Gallery view: You press and hold a file to select it and a checkmark will appear at the bottom right corner of the file when it is selected. To select multiple files, press on as many files as you want to select and check marks will appear. OR you press the More options menu icon in the upper right corner of the screen and press Select. You press on the file or multiple files you want to select and check marks will appear. You can also choose the Select all option from the More options menu to select all of the files at once.