In order to use the SUMIF function, we will first need to find out a list of unique cities using the inbuilt advance filter. Once done, follow the following formula - {=SUMIF ...

Microsoft's spreadsheet program can do way more than you might realize. These are the hacks and tricks you need to know.

Ubuntu is a free computer system, like Windows or macOS, but it’s built by a community. It’s great for programmers because it’s very flexible and has lots of tools already built-in that help you code.