Look at INDIRECT in help.

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HTH

Bob

"aw" wrote in message
...
Could anyone can help if I need to sum "exp1" & "exp2" by refering to
column
up to cell to be inputed in separated cell. eg. C1 in this case



cell to input feb (cell C1)

jan feb mar

xxx
exp 1 100 300 500
exp 2 200 400 600
xxx
xxx

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aw