hi i use this formoula =IF(LEN(A1)=1;"00"&A1;IF(LEN(A1)=2;"0"&A1;IF(LEN(A 1)=3;(A1)))) but when i have negative number the result is not correct you can see the example below
116 79 92 143 223 -18 -2
result

116 079 092 143 223 -18 0-2

desirable:

116 079 092 143 223 -018 -002