Select locked cells
Move the pointer to cells for which the Locked box is checked on the Protection tab of the Format Cells dialog box. By default, users are allowed to select locked cells.
Select unlocked cells
Move the pointer to cells for which the Locked box is unchecked on the Protection tab of the Format Cells dialog box. By default, users can select unlocked cells, and they can press the TAB key to move between the unlocked cells on a protected worksheet.
Change any of the options in the Format Cells or Conditional Formatting dialog boxes. If you applied conditional formatting before you protected the worksheet, the formatting continues to change when a user enters a value that satisfies a different condition.
Use any of the column formatting commands, including changing column width or hiding columns (Home tab, Cells group, Format button).
Use any of the row formatting commands, including changing row height or hiding rows (Home tab, Cells group, Format button).
Insert new hyperlinks, even in unlocked cells.
NOTE: If Delete columns is protected and Insert columns is not protected, a user can insert columns but cannot delete them.
NOTE: If Delete rows is protected and Insert rows is not protected, a user can insert rows but cannot delete them.
Use any commands to sort data (Data tab, Sort & Filter group).
NOTE: Users can't sort ranges that contain locked cells on a protected worksheet, regardless of this setting.
Use the drop-down arrows to change the filter on ranges when AutoFilters are applied.
NOTE: Users cannot apply or remove AutoFilter on a protected worksheet, regardless of this setting.
Use PivotTable reports
Format, change the layout, refresh, or otherwise modify PivotTable reports, or create new reports.
Doing any of the following:
Make changes to graphic objects including maps, embedded charts, shapes, text boxes, and controls that you did not unlock before you protected the worksheet. For example, if a worksheet has a button that runs a macro, you can click the button to run the macro, but you cannot delete the button.
Make any changes, such as formatting, to an embedded chart. The chart continues to be updated when you change its source data.
Add or edit comments.
View scenarios that you have hidden, making changes to scenarios that you have prevented changes to, and deleting these scenarios. Users can change the values in the changing cells, if the cells are not protected, and add new scenarios.