Task: I shall be exchanging my phone with the latest smartphone, but this phone contains some important PDF files, so to save the file, upload all the PDF files to the OneDrive app.
Steps:
Open the OneDrive app
Go to the Files tab
Click on the Plus icon at the top of the screen
Click on the Upload option
Click on the three dots more button at the top right corner of the screen
Click on the Select all option
Click on the SELECT button at the top of the screen
Click on the SELECT button at the top of the screen