Sum a range of cells from specific worksheets using Formula

[TatsuSheva]

[FONT=&quot]Hello, I am trying to sum values from the sheet which it's name is J1 to the actual sheet.[/FONT]

[FONT=&quot]Here is what I did: [/FONT]

• The Sum : =SUM('J1:Here I have to put the actual sheet'!O1187)
• Find the actual sheet: =MID(CELL("filename",A1),FIND("]",CELL("filename",A1))+1,256)

[FONT=&quot]How can I combine both in order to get my values ?[/FONT]

[FONT=&quot]EDIT: [/FONT]
[FONT=&quot]I find out something but I get the result as #REF ! here is the formula [/FONT]
[FONT=&quot]=SUM(indirect("'J1:"&MID(CELL("filename",A3),FIND("]",CELL("filename",A3))+1,256)&"'!O1187"))[/FONT]

[FONT=&quot]Do you have any idea how to fix this ? [/FONT]

 

[Special-K99]

Pls give an example of what this produces

CELL("filename",A3)