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

Excel's Custom Views tool lets you create a snapshot of your spreadsheet, allowing you to toggle between layouts.

MySQL table primary keys and unique indexes prevent multiple rows with the same index from being added to the table. If you try to insert a duplicate row with a ...

When viewing a list of posts on reddit.com, the extension finds posts with the same URL or thumbnail and groups them together, showing only the first instance. This is particularly useful when viewing ...