It's probably protected.

Try ToolsProtectionUnprotect Sheet

--
Regards,
Fred


"billy now" <billy wrote in message
...
I have received a mortgage table which calculates on a mortgage of 200000
over 20 years . the columns showing interest principal and scheduled
payments are blocked. how di i unblock these columns so that i can enter
variable data eg
what would the interest principal and scheduled repayments be on 100000
after year 12 etc.
Thanks
Billy now