I want to use VLOOKUP and INDIRECT.EXT to help produce a summary spreadsheet
from a number of files.

Cell C10 contains - =CONCATENATE("'D:\Documents and Settings\fzvtc6\My
Documents\EDS
Documents\Shared\Excel\LPS\SLA\",TEXT($A10,"yyyymm dd"),"\[",TEXT($A10,"yyyymmdd")," - Weekly - All locations - LPS - Live.xls]Weekly'!$A$1:$Z$50")

which evaluates as - 'D:\Documents and Settings\fzvtc6\My Documents\EDS
Documents\Shared\Excel\LPS\SLA\20060320\[20060320 - Weekly - All locations -
LPS - Live.xls]Weekly'!$A$1:$Z$50

In cell F10, I have a call to VLOOKUP as follows:

=VLOOKUP(D10,INDIRECT.EXT("""&C10&"""),3,FALSE)

When I try this, I get an #VALUE! error. I then tried the following:

=VLOOKUP(D10,INDIRECT.EXT("D:\Documents and Settings\fzvtc6\My Documents\EDS
Documents\Shared\Excel\LPS\SLA\20060320\[20060320 - Weekly - All locations -
LPS - Live.xls]Weekly!$A$1:$Z$50"),3,FALSE)

This also results in an #VALUE! error.

If I change the call to =VLOOKUP(D10,INDIRECT(C10),3,FALSE) and open the
file then it works.

Can anyone tell me where the INDIRECT.EXT call is going wrong?