I have a pre-installed trial version, that can only be opened 25 times without a 25 digit product key.
Important Although you are not required to enter your Product Key at installation, we recommend you do so because it helps to verify that your software is legitimate. You may run your 2007 Microsoft Office system programs up to 25 times before you are required to enter a Product Key. After this grace period, if you have not entered a valid Product Key, the software goes into Reduced Functionality mode and many features are unavailable.
What do you want to do?
..............................................................................................
What do you lose after the 25 times ? How much is full version ?
WNO : Do I need the full version for your spreadsheet ?
Important Although you are not required to enter your Product Key at installation, we recommend you do so because it helps to verify that your software is legitimate. You may run your 2007 Microsoft Office system programs up to 25 times before you are required to enter a Product Key. After this grace period, if you have not entered a valid Product Key, the software goes into Reduced Functionality mode and many features are unavailable.
What do you want to do?
..............................................................................................
What do you lose after the 25 times ? How much is full version ?
WNO : Do I need the full version for your spreadsheet ?