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aafraga aafraga is offline
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Default Fast export large 2-dim array to worksheet


Hello Excel Community,

For many years, I have been programming in EXCEL VBA and often use 2
dimensional arrays, usually of type Double of Variant. Normally, I
would declare the array such as :
Dim aMatrix(10000,50) as Double

Some math code would populate all the cells and I would then print the
aMatrix to a worksheet by nesting in a double loop:
for i...
for j...
Sheet1.Cells(i,j).Value = aMatrix(i,j)

The problem here is that Excel really slows down after a couple of
thousand.
Is there a fast way to bulk copy an array to a worksheet ?

I am looking for a function along the lines of
FastCopytoWorkSheet (aMatrix() as double, aRange as Range)
....

Is it best to just turn off screen updating or is there a more elegant
way ?
Many thanks and best regards,
Alberto


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