Gary gave you the correct answer, here is the answer to "why did someone put
it there?"
Many old times (like me) started or spreadsheet life with Lotus (or
VisiCalc) and that required a formula to begin with +
Some have not broken the habit (old dogs/ new tricks?)
best wishes
--
Bernard Liengme
http://people.stfx.ca/bliengme
Microsoft Excel MVP

"Chi" wrote in message
...

Hi,
Would you please help me to understand the formula below? What is the "
+'All information Data' ? I know that the "All information Data" is a name
of
the sheet, but I am not sure about the + sign before it.

Thanks
Chi

=+'All Information Data'!D60