Five signs a spreadsheet wants to be a workflow.

Every operation has one: the file the whole week leans on. This one-page field test, drawn from thirty years of multi-unit retail operations, tells you whether that file is doing a workflow's job by hand.

• A human retypes numbers into it on a schedule.
• Only one person can update it safely.
• It has more than one version of the truth.
• People check it on a rhythm, not on a question.
• The formulas encode decisions nobody wrote down.

The PDF spells out each sign, what it costs you, and what to do with a spreadsheet that tests positive. Print it, pin it next to the screen, and run it against the file your operation trusts most.