I am having the same problem with the formatting of the Duration field. I have a Master Time Tracker sheet that consolidates the data across all of my clients into a single data sheet. This allows me to set up data queries and other tabs/tables all indexing the same data tab. The new format of the Duration tab messes up my formulas and it would take some time to rebuild my Master Tracker.
I did come up with a quick work around though in Excel. Try using the following formula to convert the Duration time value...(in my workbook, "F2" is the starting cell with the Duration in it, so change the cell reference to whatever yours is")
"=TIME(LEFT(F2,2),MID(F2,4,2),RIGHT(F2,2))"
NOTES: The Time formula in Excel changes the current text field to an Hour/Minute/Second format.
- Hours = the 2 numbers on the far left side of the reference cell
- Minutes = the 2 numbers that start in position 4 in the reference cell
- Seconds = the 2 numbers on the far right side of the reference cell
After this, go into the number formatting and select "Custom" and scroll down to select "[h]:mm.ss"
If you play around with it, it should fix the number issue in the meantime.
Cheers! -Doug