Column contents to continuous text

[Firemaster]

Hi all
I have exported data from sql into a csv file, i have then text to columns the information. Now what i need to do is get Column A contents into a continuous line of text with a comma inbetween.
e.g
column A
123456
123457
123458

want this to be turned into
123456,123457,123458

however this can be done is fine function script or anything would be much appreciated

[Pete_UK]

Put this formula in A1:

=B1

and this one in B2:

=B1&","&A2

Then copy this down to the bottom of your data (double-click the fill handle with B2 selected). The result you want is in the bottom cell of column B, or if you want it in , say, C1, use this formula in C1:

=INDEX(B:B,counta(B:B))

Hope this helps.

Pete