Jason, that is excel "helpful" error checking, have a look at tools options
error checking to see what it is checking for, and to turn it off :)
--
Paul B
Always backup your data before trying something new
Please post any response to the newsgroups so others can benefit from it
Feedback on answers is always appreciated!
Using Excel 2002 & 2003

"Jason" wrote in message
...
When I open a file by Excel 2003, many cells has the tiny triangle(like
the
sign of a comment) insered in the upper left corner. I have no idea why
they
appeared because they don't when opened by Excel 2000.

Please advise. Thanks in advance.

Jason