wong said:
how excel 2000 convert the number to time format ( Example 13051
become
13:05:11 ) ?
Assuming A1 contains your number...
=TIMEVALUE(LEFT(A1,2)&":"&MID(A1,3,2)&":"&RIGHT(A1,2))
OR
=SUM(MID(A1,{1,3,5},2)/{24,1440,86400})
...confirmed with CONTROL+SHIFT+ENTER, and format cell as "Time".
Hope this helps