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Transcripts for the above video clip:
PROTECTION
In Excel it is possible to protect individual cells against being
overwritten or changed. This is particularly important if your
spreadsheet has inputs that can change, but formula that should not,
and you want to stop people accessing them and making changes.
In this segment you will learn how to activate the PROTECTION
feature and use the feature to control access to individual cells.
In this example we have two sections here, the light blue section
indicates that these are input areas where it is possible for users
to make changes, and here we have formulas which we’d like to
control access to, so that users cannot change them.
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If you click on Tools
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you will note that there’s a PROTECTION option
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and when you click Protect Sheet,
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this will pop up,
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if you want you can put a password in so that you
can control who can or cannot unprotect a sheet,
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and then you have a number of options to decide how
much control you want over the spreadsheets,
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if we just ignore this we leave the password out
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and we say ok,
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what you’ll notice now is if you click on a cell
lets stay that one there
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and try and type it’ll clearly tell you that that
sheet is protected,
It is very important to understand this, that in Excel when you
protect a sheet Excel assumes that every single cell will be
protected, unless you tell it otherwise.
So in order to differentiate between input cells that can be
overwritten, and formula cells that need to be protected we need to
do the following, but first let us unprotect the sheet
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so we go to Tools
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PROTECTION,
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Unprotect Sheet
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And if you had a password set up it would’ve asked
you for a password first.
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Click on the cell or cells you want to protect
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click on Format
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and the Cells option
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and you’ll see you have a number of options and
right at the end is the PROTECTION option, if you click there,
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you’ll see that it has an item called Locked that
is ticked off
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what this is telling you is that this cell, if this
sheet is protected will be locked
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what you need to do is unprotect it, so you click
it off
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and you say Ok
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and similarly you do it with the entire section
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go Format
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Cells
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PROTECTION
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and you switch that off
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and you say Ok
Now that you have told Excel which cells need to be unprotected you
can now
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go to your Tools
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PROTECTION
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Protect Sheet
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you can put your password in if you want
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and when you say Ok
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You’ll discover that it is possible to change these
numbers, but you cannot change the formula or any other cell for
that matter.
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