DATEDIF(), which means Date + Dif, is a compatibility function left over from Lotus 1-2-3 that Microsoft adopted in Excel version 2000. It's fallen off current Excel menus, but you can still use it. Here's how.
For light PDF users, everything you need is in a tool you use every day.
Blocking senders, setting rules, and other ways to keep the email pile safe as well as sane.
When Microsoft Excel complains it "cannot complete this task with available resources," or it's "Out of memory," here's what to do.
Drop-down lists in Excel let you create a list of valid choices that you can select for a given field. We'll show you how to use tables, named ranges, formulas, data validation, and table styles.
Excel macros save you time and headaches by automating repetitive tasks, and you don’t have to be a programmer to write one. Use these tips to make macro recording a cinch.
These Photoshop tips start with managing your Scratch Disk, then dive right into Content-Aware Fill, Clipping Mask, Brushes, and Vignettes.
Excel has over 475 formulas in its Functions Library, but we've selected the most popular, from date and time functions to mathematics and simple data manipulation.
Use these step-by-instructions on Word macros to turn complex procedures into one-click wonders.
Wrangle unruly text into easy-to-read formats using Word 2013's improved tables features.
Excel percentage formulas can get you through problems large and small every day. We'll walk through several examples, including turning fractions to percentages, and calculating percentage of total, increase, or decrease.
Alt key codes give you access to hundreds of special ASCII characters, from accent marks to tiny icons. We show you how to use the Alt codes and also Word's Symbol library.
Excel macros are like mini-programs that perform repetitive tasks, saving you a lot of time and typing. Here's everything you need to know to start programming macros yourself.
Word templates provide the design consistency that any organization (or individual) needs to look professional. Here's how to use pre-made templates or create your own.
Which is the better image and photo editor, GIMP or Photoshop? We compare essential features and declare a winner for each.
Articles by JD SartainOlder stories