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How To: Sum a table of data by year & month in Microsoft Excel

New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 183rd installment in their series of digital spreadsheet magic tricks, you'll learn how to sum revenue from a table of data by year and month using the SUMPRODUCT, TEXT, SUM, IF & LEFT functions in an array formula.

How To: Extract data to a new Excel workbook by array formula

New to Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. With this video tutorial from ExcelIsFun, the 308th installment in their series of digital spreadsheet video tutorials, you'll learn how to extract data to a new workbook by array formula. Functions used include IF, ROWS, INDEX, TEXT, ROW and SUMPRODUCT.

How To: Create a custom profile divider in ASP.Net

In this video tutorial, Chris Pels shows how to create a custom profile provider to store and retrieve data associated with a user profile in SQL Server tables separate from the standard ASP.NET membership provider’s aspnet_Profile table. The principles covered in this video will apply to creating profile providers for other databases like Access and Oracle. After learning how to create the custom profile provider we learn how to install the provider in a web site and see a demonstration of l...

How To: You Can Block Any App from Using Up Your iPhone's Precious Mobile Data by Doing This

If you have a limited mobile data plan on your iPhone, you know how tricky it can be to stay within your given allotment. Large app installs and updates, 4K resolution videos, and photo backups can waste precious data resources in no time. And apps like Apple News, Facebook, Mail, and Netflix eat data like it's candy. But you can nip the problem in the bud by restricting data hogs from your cellular network.

How To: Remove Location Data from Photos & Videos You Share in iOS 13 to Keep Your Whereabouts Private

The photos and videos you take with your iPhone contain bits of information, known as metadata, including the location where they were taken. This metadata makes it easier for Photos to organize your media, but put these photos and videos in the wrong hands and anyone can find out where you live or work. Luckily, iOS 13 makes it easy to wipe the geotag from images and videos before sharing.

How To: Target Bluetooth Devices with Bettercap

An incredible amount of devices use Bluetooth or Bluetooth Low Energy to communicate. These devices rarely have their radios switched off, and in some cases, are deliberately used as trackers for lost items. While Bluetooth devices support MAC address randomization, many manufacturers do not use it, allowing us to use tools like Bettercap to scan for and track Bluetooth devices.

How To: Stop Your iPhone Photos from Broadcasting Your Location to Others

Every photo you take is brimming with metadata such as iPhone model, date and time, shooting modes, focal length, shutter speed, flash use, and geolocation information. Share these pictures with friends, family, or acquaintances via texts, emails, or another direct share method, and you unwittingly share your location data. Even sharing via apps and social media sites can compromise your privacy.

How To: Fix 'Wrong PIN' Errors After Restoring a NANDroid Backup

Making a NANDroid backup can save you from all sorts of flashing-related mishaps and accidents. Bootloops, SystemUI crashes, accidental wipes, bad ZIPs, or a dozen other possibilities—there's almost no condition in which a NANDroid is unable to correct problems with your device. However, recent changes to Android have created an almost paradoxical situation where restoring a NANDroid can actually lock you out of your phone.

Video: Automate a Camera's Path with the HoloLens and VroomCam

Every day the young world of mixed reality is creating new ways for people to work with with computers. We are looking for, and finding, new ways for these head-worn computers to understand what we tell them. Sometimes it is with our hands, sometimes it is where we turn our head, sometimes it is what we say. In the case highlighted below, it's where we walk.

How To: There's One Setting You Need to Turn On to Charge Your Phone's Battery Faster

New technologies in current-generations smartphones allow for much faster charging—Qualcomm Quick Charge 3.0, VOOC Flash Charge, and USB Type-C, for instance, can charge a phone up to 4 times faster than traditional methods. However, the majority of phones on the market still don't support these standards. So for the rest of us, I'll go over an easy tip that can charge any smartphone as much as 25% faster.

Hack Like a Pro: Digital Forensics for the Aspiring Hacker, Part 13 (Browser Forensics)

Welcome back, my novice hackers! In this series, we have been exploring how a forensic investigator can find evidence of illegal or illicit activity. Among other things, we have examined the registry and prefetch files for artifacts and have done some rudimentary forensic analysis. For those of you who are seeking career as a forensic investigator or security engineer, this can be invaluable training. For hackers, it might be life-saving.

Hack Like a Pro: How to Build Your Own Exploits, Part 3 (Fuzzing with Spike to Find Overflows)

Welcome back, my hacker novitiates! In the previous two posts in this series, we looked at the basics of buffer overflows. In this post, we will look at one technique for finding buffer overflows. We will try to send random, oversized, and invalid data at a variable to see whether we can make it crash or overflow. This process is known as fuzzing. It is often the first step to developing an exploit, as we need to find some variable that is susceptible to overflowing.

How To: Running Low on Storage? Safely Clear the Cache of All of Those Hungry Third-Party Apps on Your Galaxy Note 3

Repetitive use of apps over time will eat up your storage space with by caching data on your device. This can be useful at first, speeding up your apps by not requiring them to re-download frequently used data, but as a cache grows, even the initial performance improvements can be outweighed by the unwelcomed loss of storage space. And if a cache grows too large, the time it takes an app to access the cached data can be even slower than the time it would've taken to re-download the data in th...

How To: Monitor Cellular & Wi-Fi Data Speeds from Your Samsung Galaxy Note 2's Status Bar or Notification Tray

Whether you're pressed against your bedroom window, hidden deep inside your linen closet, or lounging on the rooftop, finding that area of maximum Internet speed around your house is usually just trial and error. And when you finally find the sweet spot, apps like Speedtest.net can help you determine how fast your Wi-Fi or cellular connection is overall on your computer or smartphone, so you know your full capabilities. But, if you want to know exactly how fast your Samsung Galaxy Note 2 is u...

How To: Get All of Your YouTube Videos Back from Google Using Takeout

While putting content and information online gets easier every day, it seems like getting it back is only getting harder. In a lot of cases (we're looking at you, Facebook), once you upload something, it's forever in the hands of someone else. That's where The Data Liberation Front comes in. Believe it or not, The Data Liberation Front is a team of Google engineers who work to make it easier for users to take their stuff back whenever they feel like it.

How To: Revive a Dead Hard Drive

We depend on our hard drives for our data storage and if they stop working, our important data can be lost, this could cause many problems like losing school projects making us to do them again, losing jobs and other problems . So here is a tutorial, on how to make a dead hard drive work again.

How To: Make a histogram chart in Excel

In this tutorial, we learn how to make a histogram chart in Excel. To create a vertical histogram, you will enter in data to the chart. Then, highlight all of the data and go to "insert", "chart", then choose a regular column chart. Grab a regular 2D column and then make sure your values are correct. Then, right click and go to "chart options", then take the legend off. Now, make these columns all touch each other by right clicking over the columns and formatting them. Go to "options" then ch...