RJF wrote...
....
Problem: It does not work when numbers are not clustered together
such as
scs987dtg1234
....

Do you want the result for this particular string to be 9871234? If so,
you have two choices: brute force and VBA. The brute force formula
looks something like

=IF(ISNUMBER(--MID(A1,1,1)),MID(A1,1,1),"")&IF(ISNUMBER(--MID(A1,2,1)),MID(A1,2,1),"")
&IF(ISNUMBER(--MID(A1,3,1)),MID(A1,3,1),"")&IF(ISNUMBER(--MID(A1,4,1)),MID(A1,4,1),"")
&IF(ISNUMBER(--MID(A1,5,1)),MID(A1,5,1),"")&IF(ISNUMBER(--MID(A1,6,1)),MID(A1,6,1),"")
&IF(ISNUMBER(--MID(A1,7,1)),MID(A1,7,1),"")&IF(ISNUMBER(--MID(A1,8,1)),MID(A1,8,1),"")
&IF(ISNUMBER(--MID(A1,9,1)),MID(A1,9,1),"")&IF(ISNUMBER(--MID(A1,10,1)),MID(A1,10,1),"")
&IF(ISNUMBER(--MID(A1,11,1)),MID(A1,11,1),"")&IF(ISNUMBER(--MID(A1,12,1)),MID(A1,12,1),"")
&IF(ISNUMBER(--MID(A1,13,1)),MID(A1,13,1),"")&IF(ISNUMBER(--MID(A1,14,1)),MID(A1,14,1),"")
&IF(ISNUMBER(--MID(A1,15,1)),MID(A1,15,1),"")&IF(ISNUMBER(--MID(A1,16,1)),MID(A1,16,1),"")
&IF(ISNUMBER(--MID(A1,17,1)),MID(A1,17,1),"")&IF(ISNUMBER(--MID(A1,18,1)),MID(A1,18,1),"")
&IF(ISNUMBER(--MID(A1,19,1)),MID(A1,19,1),"")&IF(ISNUMBER(--MID(A1,20,1)),MID(A1,20,1),"")

The VBA approach would involve something like

http://groups-beta.google.com/group/...d252b4201d9d22