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How do I get an older version of a Word document? Open the file you want to view. Go to File > Info > Version…

How to create an exception for duplicate value? First exception on row 0; first error: DUPLICATE_VALUE, duplicate value found: unknown duplicates value on record with…

How do I find the IP address of an Android app? To find your phone’s IP address, go to Settings > About device > Status.…

How does a Lipo battery balancer work? The balancer uses the lipo balance connector to access each cell. Once connected it can do 2 things,…

How does PGP web of trust work? Operation of a web of trust OpenPGP certificates (which include one or more public keys along with owner…

How do I get rid of the message bubble on Android? Select “Apps and Notifications.” Next, tap “Notifications.” In the top section, tap “Bubbles.” Toggle-Off…

Should I take MAT or TMUA? If you apply to Oxford or Imperial, you have to take the MAT. If you apply to Durham, you…

Should SD card be exFAT or NTFS? Also the restrictions about file size etc apply equally to FAT32 formatted USB flash drives. As I mentioned…

How can I calculate mentally fast? Mental Calculations – Getting the result fast Addition of 5. When adding 5 to a digit greater than 5,…

Why is my ESP8266 not booting properly? The ESP8266 can be prevented from booting if some pins are pulled LOW or HIGH. The following list…