How ah? I can go to general option is save as and protect it with password and no modification can be done.

Upon opening the excel file, i cannot modified it but once i go to save as other name, then i can modified liau. How can i protect save as too? Means that the file cannot be save as other name too?

Or can i jes protect the fomula in excel? It's 2003. Please help urgent.

Hmm,

Have you try:

Tools --> protection --> protect sheet (make sure unclick all boxes)

I try this one, and i can't modify it even if i save as into other name. (excel 2003)

The password can be cracked

Dude, no password is uncra*k-able.

There are uncrackable pass.
Not everyone know how to crack password.
Password recovery software use dictionary attack, so if u put very long n weird pass, it canot be cracked.

Renamed the extension, then nobody can open your files... Only yourself can open it by renaming back the original extension