I like these. It's usually a couple classes over a month that you can do at your own pace. They are typically free or have some minimum fee. There are intro courses from Microsoft and/or a couple European universities, but I don't see them in my initial search. Best of luck.
Introduction to Data Analysis Using Excel
Rice University
Sharad Borle, Associate Professor of Management
Jones Graduate School of Business
The use of Excel is widespread in the industry. It is a very powerful data analysis tool and almost all big and small businesses use Excel in their day to day functioning. This is an introductory course in the use of Excel and is designed to give you a working knowledge of Excel with the aim of getting to use it for more advance topics in Business Statistics later. The course is designed keeping in mind two kinds of learners - those who have very little functional knowledge of Excel and those who use Excel regularly but at a peripheral level and wish to enhance their skills. The course takes you from basic operations such as reading data into excel using various data formats, organizing and manipulating data, to some of the more advanced functionality of Excel. All along, Excel functionality is introduced using easy to understand examples which are demonstrated in a way that learners can become comfortable in understanding and applying them.
https://www.coursera.org/learn/wharton-introduction-spreadsheets-models?action=enroll
Introduction to Spreadsheets and Models
Wharton School
Don Huesman, Managing Director,
Wharton Online Innovation Group- Wharton School
The simple spreadsheet is one of the most powerful data analysis tools that exists, and it’s available to almost anyone. Major corporations and small businesses alike use spreadsheet models to determine where key measures of their success are now, and where they are likely to be in the future. But in order to get the most out of a spreadsheet, you have know how to use it. This course is designed to give you an introduction to basic spreadsheet tools and formulas so that you can begin harness the power of spreadsheets to map the data you have now and to predict the data you may have in the future. Through short, easy-to-follow demonstrations, you’ll learn how to use Excel or Sheets so that you can begin to build models and decision trees in future courses in this Specialization.
Basic familiarity with, and access to, Excel or Sheets is required.
https://www.coursera.org/learn/wharton-introduction-spreadsheets-models?action=enroll#
Data-driven Decision Making
PricewaterhouseCoopers LLP
Welcome to Data-driven Decision Making. In this course you'll get an introduction to Data Analytics and its role in business decisions. You'll learn why data is important and how it has evolved. You'll be introduced to “Big Data” and how it is used. You'll also be introduced to a framework for conducting Data Analysis and what tools and techniques are commonly used. Finally, you'll have a chance to put your knowledge to work in a simulated business setting.
https://www.coursera.org/specializations/pwc-analytics
Math behind Moneyball
University of Houston
https://www.coursera.org/learn/mathematics-sport
A full list:
https://www.coursera.org/courses?languages=en&query=excel
