Hi mijochda ,
You bring up several different issues. Maybe we can work through them.
May I assume you are using Excel with the latest update, which is 16.3.1? Version 16.14 is currently available in Insider Slow and will go out to everyone in the next week or two.
What is Office Insider? -
Office Support
You can find the version information by going to the Excel menu and choosing About Excel. If your experience is with any other version, I recommend that you go to the Help menu and choose Check for Updates to launch AutoUpdate and let it install updates.
Then restart your Mac and try the problem workbook again.
I have noticed an occasional post here in the forums from people who find Word or Excel to be excruciatingly slow for no obvious reason. Excel 2016 for Mac runs just fine for me and I have not been able to replicate these issues on any of my Macs. I use
a workbook having more than 10,000 dependent cell formulas and its operation is instantaneous. I use data sets of more than 500,000 rows and more than 100 columns where calculation is very fast - every bit as fast as Excel for Windows (we now have multiple
core calculations). These workbooks have multiple PivotTables and charts. If you are willing to share the problem workbook, please remove personal or confidential information first, then put it onto a share site such as DropBox or OneDrive and provide the
download link so everyone interested can try it on their Mac to see how it behaves.
While you were reconstructing your workbook, did you notice what formula or something you did in the workbook led to the slowdown? I assume it worked fast up to a certain point, then something changed. You said there is complexity that you think is slowing
it down. Is there something specific you have in mind?
You mentioned Views. Excel 2011 has two views: Normal and Page Layout. There is no "Single Page" view. Excel 2016 has the same two views plus a old one that was reincarnated from 2008 and earlier, Page Break Preview. I'll need your help to understand what
you mean by Single Page view.
Old builds of Excel 2016 had major scrolling problems in Page Layout view. To the best of my knowledge, the scrolling problem has been fixed. I don't see complaints about it any more (except for yours).
I do not claim these problems don't exist for you. I will claim that the root cause of the problems you are having can be identified and perhaps corrected. When there is a large factor of uniqueness, it is sometimes difficult to suggest the right thing that
fixes the trouble right off the bat. Unfortunately, this involves using a process of elimination that has many possible branches.
Operations that can affect speed that come to mind are: workbook corruption, workbook content, font problems, lack of updates, file system corruption, faulty install of Office or Mac OS.
You have taken a good approach toward your troubleshooting. Testing in Excel 2011 where there's no speed issue points a finger at something going wrong in Excel 2016 on your Mac. If you can find another Mac having the same update 16.13.1 of XL 2016 and open
the workbook on the other Mac, is it still slow?
If it works fast on another Mac, then we can focus on the install of Office, Mac OS and your fonts. If the same slowness appears, it could be a problem with the workbook. Then we can focus on finding what it is about the workbook that is causing the slowdown.
Another troubleshooting step to take is to boot to Safe Mode by restarting your Mac while holding the SHIFT key down. Your Mac will take a long time to start up, as Disk Utility runs in the background and fixes your file system, if necessary. The font cache
is emptied, too. Then try the workbook while in Safe Mode. Is it any better or just the same?
More radical troubleshooting can involve making a new Mac OS User account and testing there, uninstall/reinstall of Office, reinstall system fonts, look crosswise at your font management tool (some of them have weird interactions with other apps for some
reason), reinstall MacOS. I admit that there are a couple of users who have tried everything, and for some reason there is still extreme slowness on their Macs. In these rare cases you an join Insider Fast and interact directly with the developer teams at
Microsoft to try to solve mysterious issues.
Recently, the object model of Excel 2016 for Mac was upgraded to the same object model as Excel 2016 for Windows. The cross-platform experience is not 100% yet, but with each update, Microsoft is bringing the Mac version closer and closer to the Windows
feature set. I haven't tested, but I think using Control-e now works to use Flash Fill in the 16.13.1 update. If it does, this is a major cross-platform milestone. If you open a workbook having a Data Model in 16.13.1 you won't get a dialog warning you that
your workbook has an unsupported feature. The Data Model doesn't work, but now Excel for Mac lets you at least open the workbook without removing the data model. Some data model features are in the interface, but they are turned off. It is obvious this enormous
feature is being worked on and will go live, eventually.
The 32-bit program support issue and its resulting problems with old software is strictly Apple's idea. Mac OS 10.14 may or may not support 32-bit applications. My hunch is that Apple is playing a "wait-and-see" game to see how strongly Mac users push back
against the idea of losing 32-bit applications. As with Rosetta, there isn't a technical reason why 32-bit apps can't run. It's a marketing decision.