I am a beginner in Excel and I would like to become Advanced. Which is the best way to do this and where can I find free tutorials? I want to learn as much as possible about Excel asap.
You can try visiting https://support.office.com/en-us/excel, very helpful to start, I will also recommend the training option including the training templates Excel for Windows training - Office Support.
Fully recomend to check the Certifications and you can have an idea what you can practice Browse Certifications and Exams | Microsoft Docs
I would highly recommend looking at udemy.com . There are an abundance of very inexpensive and insightful Excel courses here. I learned a lot from this course in particular: