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Highlight the input cells, right click, and select Format Cells.
In the dialog box, click the Protection Tab and un-check the Locked Option. Click OK.
Go to the Review Tab of the ribbon. Select Protect Sheet.
In the Protection Sheet Dialog Box, make sure “Select Locked Cells” and “Select Unlocked Cells” are checked. Everything else can be unchecked. Click OK.
Optional: You can create a password.
Now with your spreadsheet saved, a user will only be able to make changes to the input fields. If they tried to make changes, an alert message will appear.
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