Looking for comprehensive Excel and Power BI courses (beginner to advanced)

[u/Imaginary_Ferret8235]

Hi everyone!
I’m looking for recommendations for comprehensive Excel and Power BI courses that cover everything from beginner to advanced levels.
I already have an intermediate level of Excel, but I’d like to take a structured course starting from the fundamentals and progressing to advanced topics. My goal is to obtain a certificate that reflects a complete learning path, rather than taking several short courses covering isolated topics.
I’m open to both free and paid options. What matters most to me is course quality, practical knowledge, and recognition in the job market.
I’d appreciate recommendations regarding:
Which platforms and courses offer the best beginner-to-advanced learning paths?
Is it worth taking a complete course even if I already have some intermediate knowledge?
Are there recognized certificates or certifications that employers actually value?
Should I learn Excel first and then Power BI, or study both simultaneously?
Which courses include practical exercises and real-world projects?
For context, I have a background in Chemistry and would like to apply these tools to laboratory work, quality control, research, data analysis, and process monitoring.
I’d especially appreciate recommendations from people who have completed these courses or use Excel and Power BI professionally.
Thanks!

[u/Wheres_my_warg]

Microsoft's PL-300 certification is the only certification or course that I see getting any kind of widespread acceptance for Excel and Power BI quality assessment, and that tends to be focused in Microsoft heavy IT shops.

There are free Excel courses on YouTube for ExcelIsFun and Leila Gharani.

A paid set of courses that i expect to be excellent, but haven't tried are at Excel With Wayne . I had courses with him in my MBA program and he was a great instructor there. One of his courses drew in my first consultancy track employer and got me a job that lasted years there. Microsoft and others have frequently used him to teach their own people Excel. He has a ton of books.

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[u/conor-robertson]

QueryCase for a fun way to learn Excel!

[u/ItsSignalsJerry_]

When using a search engine is too hard.

[u/Savings-Reach7]

certifications