Whether you're a freelance designer or a small business owner, one thing you'll have to do on a regular basis is create professional invoices to ensure you...

If finding a better job is on your agenda for 2018, you'll want to check out our quick new course, How to Make a Professional Resume in 10 Minutes.

In today's tutorials, learn how to give Microsoft Office apps, like PowerPoint, Excel, and Word, a different interface look by changing the app theme.

Formulas drive the usefulness of spreadsheets. Learn how to make and work with your first formula in Microsoft Excel, as well as how to use basic functions.

In this tutorial, learn how to use three conditional Excel math functions to add logic to your spreadsheets. Get started with COUNTIF, SUMIF, and AVERAGEIF.

Master key formulas for working with dates and times in Microsoft Excel. Learn how to properly format dates/times and put Excel date formulas to good use.

Do you want to build smart options into your spreadsheets? Then, learn how to use IF statements in Microsoft Excel to make your spreadsheets much smarter.

Never use a calculator again! In this tutorial, learn the essential Excel Math formulas for working with numbers and making calculations in Microsoft Excel.

Learn how to find duplicates in Excel and then clean them up. Delete messy, repetitive Excel spreadsheet fields with Microsoft's Remove Duplicates function.

Need to match elements from two spreadsheet lists? Discover what VLOOKUP is, how to use VLOOKUP in Excel (with proper written formulas), and fix common issues.

In this tutorial, learn how to calculate percentages in Excel with step-by-step workflows. Get the formulas, functions, and techniques to help you work with...

Learn how to compare multiple sets of data in Excel with the What if Analysis Scenerio Manager. It helps you find a solution or make a decision based on data...