How do you lock a cell in excel

[importdistributors]

When using the =(cell letter number) Like =A7 how do I make it so that once the value is in the field I can delete whatever was in A7 but it would not change in the field?

 

[Sam25]

Here's the procedure:

http://support.microsoft.com/kb/214081

 

[Tarrant64]

Wasn't there a hot key to do that in excel? What does F11 do?

 

[NeoV]

f11 takes you to the VB editor

To convert a formula to a value, copy-paste special - value