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As part of an ongoing series, the CNN Underscored team showcases outstanding deals you can shop right now on the CNN Store. Each week, our staff chooses a product to feature that we think you’ll love. This week, we’re highlighting three data courses that are on sale now via the CNN Store.

These days, so many jobs require at least a basic knowledge of Excel. It’s one of the most common tools used by business professionals, such as data analysts, payroll managers and accountants.

Once you’ve mastered Excel, there is a whole list of even more complicated programs designed to handle big data sets. While these programs can be helpful, they’re not always the most intuitive to understand and operate.

For those lacking a business background (or need additional guidance getting started), the lineup of courses below will be your go-to. We’ve broken them down by type so that you know exactly what you’re getting. As an added bonus, all courses have been rated an impressive 5 stars from past students surveyed by StackSocial. Keep scrolling to shop from three affordable course options that will save you hundreds of dollars on lessons covering Excel, Oracle, SAS and more.

Note: The prices below and star ratings reflect the retailer’s listed information at the time of publication.

1. Ultimate Data & Analytics Bundle: Lifetime Subscription ($29, originally $299;

Brought to you by Corporate Bridge, the Ultimate Data & Analytics Bundle provides lifetime access to more than 1,500 hours of coached study time. This bundle is designed to teach you how to work with raw data in order to effectively analyze it. Because the ability to spot trends from a giant collection of data is a highly sought after skill, we’d recommend giving this guided course a shot. The best part is, it costs just $29, meaning you don’t have to blow your budget to take the course. To read more reviews on eduCBA courses, see what past students have said here.

2. The Excel & Google Sheets Mastery Bundle: Lifetime Access ($19, originally $690;

If you’ve struggled with Excel, here’s the answer. The Excel & Google Sheets Mastery Bundle grants users lifetime access to over 35 hours of guided training. The best part? It only costs $19.

With this course, you’ll learn the ins and outs of Google Sheets, Microsoft Excel functions, plus a whole lot of other Excel features, including charts, graphs, pivot tables, functions, formulas and more.

As for the instructor, Justin Mares formerly managed growth and revenue at the company Exceptional. There, he was in charge of running Exceptional, Airbrake and RedisToGo, which are all developers tools products. Additionally, he co-authored Traction Book, which outlines how startups can grow, maintain success and get distribution.

Additionally, if you’re looking to save on your purchase, the CNN Store is the place to buy. Typically, the Google Sheets course alone costs $69 annually, but when purchased from the CNN Store, you’ll get lifetime access to the entire Excel & Google Sheets Mastery Bundle for just $19

3. The Complete Tableau 10 Data Scientist Bundle ($19, originally $623.96;

Here’s your chance to master Tableau 10. If you’ve never heard of it, Tableau is a data visualization tool that breaks down mounds of information into clear, actionable insights. It’s a valuable tool for any data specialist to have in his or her back pocket since it’s designed to make the data analyzation process go faster.

The instructor, Packt, works to teach IT professionals new and innovative ways of using software. In doing so, the company has already published over 4,000 books and videos that provide the actionable knowledge necessary to “get the job done.” Whether the courses include specific teachings on an emerging technology or key skills in more established tools, the goal for Pakt is to deliver “effective learning and information services to IT professionals.”

The best part is, when you shop this bundle via the CNN Store, you’ll get the entire bundle for just $19. That’s quite the deal when you consider that this bundle includes both volume one and two of the Tableau 10 Business Intelligence Solutions courses, which each normally retail at $124.99.