String utility

Hi All,

I am trying to replicate the following string below as I have trying to make Category value dynamic. But @@@@@@ is throwing me off as it is caused by some utility with which SAVE and EXPAND are concatenated. I am trying to find a utility which can used to produce same result.  Hexa value is 004000400040 and char value is @@@.

SAVE@@@@@@EXPAND@@@|DIMENSION:CATEGORY|RF6|DIMENSION:PROFIT_CENTER||DIMENSION:TIME|

Thanks.