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LibreOffice 3.4 Calc Guide - The Document Foundation Wiki

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Figure 20: Two levels of password protection<br />

4) Click OK to save the file. If either pair of passwords do not match, you receive an error<br />

message. Close the message box to return to the Set Password dialog and enter the<br />

password again.<br />

Caution<br />

<strong>LibreOffice</strong> uses a very strong encryption mechanism that makes it almost<br />

impossible to recover the contents of a document if you lose the password.<br />

Changing an existing password<br />

To change an existing password while the document is open:<br />

1) Use File > Properties to open the spreadsheet properties dialog.<br />

2) In the General tab, click the Change Password button, which is located at the top right<br />

corner next to the file name.<br />

3) <strong>The</strong> Set Password dialog opens; see Figure 20.<br />

Chapter 1 Introducing <strong>Calc</strong> 31

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