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rrhandle8Flag for United States of America

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Excel scrolling very slow

I have a workbook I use every day.  Last night I noticed that scrolling using the arrow keys, it goes very slowly.  It goes to the next cell, then there is a delay before going to the next cell.  This does not happen in any of my other workbooks.
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bigeven2002
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Hello,
Which version of Excel are you using?
Is the scrolling latency happening on just the one workbook or any workbook?
Is the workbook in classic or native format?
Does the workbook use any macros?
If you use Tab to go to the adjacent cell, does it have latency like the arrow keys?
Do you have any other excel files open at the same time?
Did the latency just start?  Have you rebooted the computer to see if it persists?
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ASKER

Which version of Excel are you using?
2010 but this workbook is 2003
Is the scrolling latency happening on just the one workbook or any workbook?
Just the one
Is the workbook in classic or native format?
Please explain the difference
Does the workbook use any macros?
Yes. All my workbooks contain macros
If you use Tab to go to the adjacent cell, does it have latency like the arrow keys?
Yes. Acts just like the arrow keys
Do you have any other excel files open at the same time?
Yes and they all work just fine
Did the latency just start?  Have you rebooted the computer to see if it persists?
 Started last night. Rebooted the computer a few times and also did the "Open and Repair"

Additional note: A week ago I made a back-up of the workbook.  I opened the back-up this evening, and the arrow keys work fine.  I would go back to using the backup, but the workbook gets appended with new information every night.
Ok thanks for the update.  For Classic vs native, is the workbook in xls or xlsm format?  Since the work book worked fine last week, how many rows of data are in the work book currently?
Tens of thousands
It is .xls. I converted to .xlsm.  Still does not work.  Previous ones in the .xls format work fine.
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bigeven2002
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I was planning to do what you recommended.  Knowing there were a lot of Defined Names in the workbook, I was wondering how I would move these to the new workbook.  I opened "Manage Names" to see what was all there.  To my surprise, there were hundreds of Defined Names that all started with "ExternalData_".  See image. I do not know where they came from, but I am sure some macro is creating them.  After I deleted all of them, saved, closed and reopened the workbook, everything is working just fine.

Thanks for pointing me in the right direction.

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bigeven2002 pointed me in the right direction.
OK great!  Glad I could help!