Does making sales video tutorials infringe the copyright of others?

For example, if you do a MicrosoftWord tutorial yourself, the copyright will be generated after the video tutorial is completed, and it will belong to you. The use of foreign textbooks in English curriculum production may infringe copyright, because the copyright protection of the author's life and 50 years after birth depends on whether the famous works exceed the time limit. Textbooks compiled by other publishers need to pay a certain fee to be commercialized.

For example, I do a video tutorial of a certain software (such as MicrosoftWord), and then I create a website to sell it (such as requiring people to watch my videos with the purchased points). Or, I will make a teaching video of English courses (such as California primary school textbooks, Oxford English reading tree, new concept English, or explain some famous English books). For example, I make a video tutorial of software (such as MicrosoftWord), and then I create a website and sell it (for example, people need to watch my video with the purchased points). Or, if I make a teaching video of English courses (such as California primary school textbooks, Oxford English reading tree, new concept English, or explain some famous English books) to explain the meaning of the text, can I put it on my website for sale (for example, some can be watched for free, while others can only be watched by paying members)? Or put it on the website and sell it in other forms. I want to ask, because the software itself was developed by other companies, did the tutorial I made infringe the copyright of others when I sold it? There is also an English course video tutorial. I just explain the meaning of the text, not the producer of the textbook itself. Then, if I sell the video of the meaning of the words I explain, does it constitute infringement of the copyright of others? If so, in what form should I sell my own video tutorial? launch