In the duplicate world, definition means everything. That’s because a duplicate is subjective to the context of its related data. Duplicates can occur within a single column, across multiple columns ...

Jeff Fehring wants a way to find and eliminate duplicate songs in his large music collection. There are plenty of good programs for finding duplicate files–based on file name, size, and checksums–but ...

If you’ve got a whopper of a spreadsheet, with thousands or more of rows, you’ve got a big problem if you want to make sure the spreadsheet doesn’t contain duplicate entries. Excel simply doesn’t have ...

Instead of finding all potentially similar songs, you can find multiples of identical recordings to help clean up your library. Topher, an avid Mac user for the past 15 years, has been a contributing ...

Microsoft Excel and Google Sheets, two leading spreadsheet applications, offer many features to help users work efficiently with their data. One shared challenge spreadsheet that users face is ...

Q. What is the best way to identify duplicate transactions that could have been entered into my Excel spreadsheet? A. Duplicates in spreadsheets can compromise data integrity, making it difficult to ...

When it comes to apps for backing up your photos and videos, Google Photos is easily one of many people's go-to apps. It's typically built into Android devices, available on other major platforms, and ...

You can stay organized in Gmail with more tools than just email management, such as the tasks list and a versatile contact manager. Over time, especially if you've ever imported contacts, you may find ...

Windows 8's built-in search function is pretty good at finding individual files and all the other files that share the same name. However, it does not do a good job of clearly flagging identical files ...

When you're working with a spreadsheet, duplicate data can sometimes make its way in and cause all sorts of problems. In this how-to, we demonstrate two methods of using Microsoft Excel for ...