Try:
=SUMPRODUCT(A1:A1000+0)
By the way, copy an empty unformatted cell, select the range of interest, activate Edit|Paste Special, and activate Add. After all this, you should be able to use SUM.
Aladin
How to convert to numeric data type...
A.R., the act of changing the formatting of your
column from "Text" to a valid number format doesn't
cause a change of data type. You can use Excel's
Text to Columns... command to cause this change
after you changed the cell formatting of your
values to a valid number format. Just choose the
Data | Text to Columns... menu command and press
[ Finish ] at Step 1 of 1.
A.R.
You started another thread about the same problem. I suspect you haven't been able to apply what I proposed.
Here another proposal:
Lets say that the numbers you want to sum in A1:A1000 in Sheet2.
Insert another sheet in this problematic file/workbook.
Type in A1 of this new sheet:
=1+2
The result must be 3 of course. If this works, then in A2 in this sheet enter:
=SUMPRODUCT(the-name-of-the-problem-sheet!A1:A1000+0)
Please report what you get.
Aladin
PS. If in doubt, I'd like to have a look at your file if possible.
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