I would like to display result of a subtraction between two time values in time format "hh:mm". It is OK if the result is positive, but only ###### if negative. How to format the cell to show the result with "-" sign as "-12:23" ?
In Excel VBA, I invoke a process to run in background. After finish, the process should be closed by setting to Nothing, but sometime it fails to close. I can go to the Task manager or use command line "Taskkill" to kill the process manually.
How can I check if it is closed and kill the process...
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