Method 1.
While expressions
Wend
For example: 100 cycles
While i <= 200
i = i + 1
If i = 100 Then GoTo 100
Wend
100: 'Exit while
msgbox "Already exited while!"
Method 2.
i = 1
Do While i < 10000
If i = 100 Then Exit Do
i = i + 1
Loop
MsgBox i