Remember to save this as a CSV! After you have edited and saved your CSV, go to file > Open and export > Import/Export > Import from another program or file > Comma Separated Values > Select your file > select your desired folder/list > **Check that the box is clicked** > import your tasks! **if the box is not clicked, click it, and it will (Likely) bring you to a page to “map custom fields”. Then you can go in and open that file, and add your tasks according to the template that was downloaded. Then, go to file > Open and export > Import/Export > Export to a file > Comma Separated Values > select your desired folder/list > save the file. Find the list you want to upload to, and make sure there is at least one filler task in their for the time being so that you have a template to work from. If you are signed in to the correct MS account, your To-do list should be synced to this page.

On the bottom left there is a tab to navigate to the “Tasks” page – click on this.

To do this, you must be signed in to Outlook on a desktop – as far as I know this will not work on the web version. However, there is a way to do it – through Outlook instead. I’ve solved it! I’ve long had a frustration with the fact that MS To-do does not have the ability to import mass tasks from excel like Wunderlist did, and every attempt to search up a solution just led me to posts with the same complaint, and no solution.

Excel todo list with subtasks