No - he will get a #NAME error.

One of the pitfalls of using add-ins...


In article ,
Shuang wrote:

I tried the INDIRECT.EXT() function today, and it works great.
This excel file will be reviewed by somebody, whose PC might not have
INDIRECT.EXT() built-in function. Will INDIRECT.EXT() points to the
built-in function INDIRECT() when his PC EXCEL does not install
INDIRECT.EXT()?