Create a block diagram - Microsoft Support
https://support.microsoft.com/en-us/office/create-a-block-diagram-f7e11f20-45d9-4c31-92c9-16a87a6b6fee
WEBMake block shapes flow into one another. From Blocks, drag a 1-D single, 2-D single, or Open/closed bar shape onto the drawing page. Or, from Blocks Raised, drag a Right arrow, Up arrow, Left arrow, Down arrow, Horizontal bar, Vertical bar, or Elbow shape onto the drawing page. Right-click the shape, and then click an Open command.
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