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Excel 2013

To lock cells for editing:

  1. On the Review tab > Protect Sheet.

  2. Type a password, and make sure that Protect worksheet and contents of locked cells is selected.

  3. Click OK. All cells have the Locked formatting by default, so this will protect all cells. 

Excel 2016

To lock cells for editing:

  1. On the Review tab > Protect Sheet.

  2. Type a password, and make sure that Protect worksheet and contents of locked cells is selected.

  3. Click OK. All cells have the Locked formatting by default, so this will protect all cells. 

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