Function Library in QTP

[prasadworld321]

Can any one make me confirm about the difference between the function library having extension like function.txt,f unction.qfl, function.VBS??

whether all are same or differ from each other. if so, pls give some examples.

Thanks

[Saket]

all three can be treated as the function library in QTP.
by default QTP function library is .qfl file, but you may save it in any of the three formats.
it should depend on the type of functions written into it.

[tester_rahul]

Just wanted to add
.txt is a text file , .vbs is vbscript file and .qfl is Quicktest function library.

[vijayendra.shukla]

I am not sure if all are same then why am I not able to put a breakpoint in run mode on a .qfl function library while I can do this on .vbs files.

I was facing this problem for few days and had no idea what was causing me not to use a breakpoint in my function library. When I googled, I was puzzled that everyone says you can use breakpoint in qfl but not in vbs. I tried by myself and figured its probably the other way around. But may be it's just me or my machine.

FYI - I use QTP-10.