[excel] How to merge rows in a column into one cell in excel?

E.g

A1:I
A2:am
A3:a
A4:boy 

I want to merge them all to a single cell "Iamaboy"
This example shows 4 cells merge into 1 cell however I have many cells (more than 100), I can't type them one by one using A1 & A2 & A3 & A4 what can I do?

I know this is really a really old question, but I was trying to do the same thing and I stumbled upon a new formula in excel called "TEXTJOIN".

For the question, the following formula solves the problem

=TEXTJOIN("",TRUE,(a1:a4))

The signature of "TEXTJOIN" is explained as TEXTJOIN(delimiter,ignore_empty,text1,[text2],[text3],...)

In simple cases you can use next method which doesn`t require you to create a function or to copy code to several cells:

1. In any cell write next code

   =Transpose(A1:A9) 
   

Where A1:A9 are cells you would like to merge.

2. Without leaving the cell press F9

After that, the cell will contain the string:

={A1,A2,A3,A4,A5,A6,A7,A8,A9}

Source: http://www.get-digital-help.com/2011/02/09/concatenate-a-cell-range-without-vba-in-excel/

Update: One part can be ambiguous. Without leaving the cell means having your cell in editor mode. Alternatevly you can press F9 while are in cell editor panel (normaly it can be found above the spreadsheet)

Use VBA's already existing Join function. VBA functions aren't exposed in Excel, so I wrap Join in a user-defined function that exposes its functionality. The simplest form is:

Function JoinXL(arr As Variant, Optional delimiter As String = " ")
    'arr must be a one-dimensional array.
    JoinXL = Join(arr, delimiter)
End Function

Example usage:

=JoinXL(TRANSPOSE(A1:A4)," ") 

entered as an array formula (using Ctrl-Shift-Enter).

Now, JoinXL accepts only one-dimensional arrays as input. In Excel, ranges return two-dimensional arrays. In the above example, TRANSPOSE converts the 4×1 two-dimensional array into a 4-element one-dimensional array (this is the documented behaviour of TRANSPOSE when it is fed with a single-column two-dimensional array).

For a horizontal range, you would have to do a double TRANSPOSE:

=JoinXL(TRANSPOSE(TRANSPOSE(A1:D1)))

The inner TRANSPOSE converts the 1×4 two-dimensional array into a 4×1 two-dimensional array, which the outer TRANSPOSE then converts into the expected 4-element one-dimensional array.

This usage of TRANSPOSE is a well-known way of converting 2D arrays into 1D arrays in Excel, but it looks terrible. A more elegant solution would be to hide this away in the JoinXL VBA function.

If you prefer to do this without VBA, you can try the following:

1. Have your data in cells A1:A999 (or such)
2. Set cell B1 to "=A1"
3. Set cell B2 to "=B1&A2"
4. Copy cell B2 all the way down to B999 (e.g. by copying B2, selecting cells B3:B99 and pasting)

Cell B999 will now contain the concatenated text string you are looking for.

Inside CONCATENATE you can use TRANSPOSE if you expand it (F9) then remove the surrounding {}brackets like this recommends

=CONCATENATE(TRANSPOSE(B2:B19))

Becomes

=CONCATENATE("Oh ","combining ", "a " ...)

You may need to add your own separator on the end, say create a column C and transpose that column.

=B1&" "
=B2&" "
=B3&" "

For those who have Excel 2016 (and I suppose next versions), there is now directly the CONCAT function, which will replace the CONCATENATE function.

So the correct way to do it in Excel 2016 is :

=CONCAT(A1:A4)

which will produce :

Iamaboy

For users of olders versions of Excel, the other answers are relevant.

For Excel 2011 on Mac it's different. I did it as a three step process.

1. Create a column of values in column A.
2. In column B, to the right of the first cell, create a rule that uses the concatenate function on the column value and ",". For example, assuming A1 is the first row, the formula for B1 is =B1. For the next row to row N, the formula is =Concatenate(",",A2). You end up with:

QA
,Sekuli
,Testing
,Applitools
,Visual Testing
,Test Automation
,Selenium

3. In column C create a formula that concatenates all previous values. Because it is additive you will get all at the end. The formula for cell C1 is =B1. For all other rows to N, the formula is =Concatenate(C1,B2). And you get:

QA,Sekuli
QA,Sekuli,Testing
QA,Sekuli,Testing,Applitools
QA,Sekuli,Testing,Applitools,Visual Testing
QA,Sekuli,Testing,Applitools,Visual Testing,Test Automation
QA,Sekuli,Testing,Applitools,Visual Testing,Test Automation,Selenium

The last cell of the list will be what you want. This is compatible with Excel on Windows or Mac.

I use the CONCATENATE method to take the values of a column and wrap quotes around them with columns in between in order to quickly populate the WHERE IN () clause of a SQL statement.

I always just type =CONCATENATE("'",B2,"'",",") and then select that and drag it down, which creates =CONCATENATE("'",B3,"'",","), =CONCATENATE("'",B4,"'",","), etc. then highlight that whole column, copy paste to a plain text editor and paste back if needed, thus stripping the row separation. It works, but again, just as a one time deal, this is not a good solution for someone who needs this all the time.