How to open the e-book in the SD card saved by BBK learning machine?

Hello, dear netizen, thank you for your concern and support for BBK products!

E-books can only support txt format, but other formats cannot. If you download the materials in txt format, you can search and use them directly in the e-book module of the machine.

If you have any other questions, please contact QQ Online Customer Service of BBK Education Electronic Enterprise: 8000 16630.

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