First, download the TXT file you want to read on the computer.

Download the reading software ibooks from the Apple kernel and install it on the mobile phone.

Connect your mobile phone with itools.

Find the gallery management in the iphone column of itools, and click it. Find the Add button in the toolbar above and add the TXT file you want to see. At this time. Itools will automatically convert the file format. After the conversion, you will be prompted that it has been added to ibooks, and the file name you added will appear in the lower column.

Turn on your mobile phone and enter ibooks. The TXT file you added will appear on the bookshelf. Click on it to start reading.