You can switch on calculating with all available processors by going to “File” (no. 2), “Options”, “Advanced” (no. 3). Scroll down, tick “Enable multi-threaded calculations” and choose “Use all processors on this computer” (no. This should speed up your calculation immediately. Close other programs The obvious step: close everything, which uses unnecessary system resources. This can be internet browsers, music programs, other Microsoft Office programs. You should also check, which programs are running in the background.

I get a lot of spontaneous Spotlight Re-Indexing and several apps (iPhoto, Dropbox, Safari) go slow and this seems to be associated with “QTKit Server” process that appear (in red) in the Activity Monitor. I’d read that “QTKit Server” was to do with a bug in Safari but I don’t get it on a newer machine and it isn’t restricted to Safari on my old machine (Dropbox and iPhoto too), so I have my doubts about this suggestion. I’m using 300 GB of a 500 GB HDD, so it’s not weird because it’s full.

RELATED: 10 Ways To Free Up Disk Space on Your Mac Hard Drive. As on any computer, freeing up disk space can also speed things up if you have a very small amount of disk space. To check, click the Apple menu, select “About This Mac,” and look under the “Storage” heading. If there isn’t a decent chunk of free space, you’ll want to free up space on your Mac’s internal storage. Ideally I'd like to have feedback on the status of the script, which I tried to implement with a status bar, but this didn't work because of a limitation with 2011 version of Excel. At the beginning of the run, I can see the sheets being updated and everything running smoothly, but later in the script excel freezes until it completes.

What are your favorite methods? How do you optimize & deal with sluggish workbooks? Please share your ideas & tips with us using comments. I see most are saying that array formulas are bad. But I thought that when you use array formulas it grabs all the data at once and performs the calculations in one fell swoop. At least that is how the UDFs that I created work. When I did the time test it was much faster that way.

Try the “Disk” section, too — a process using the disk heavily could also be causing your Mac to slow down. Close Applications Mac OS X likes to leave applications running in the dock. Even clicking the red “X” button on an application window won’t close it — it’ll remain running in the background. In most cases, this isn’t a big problem. However, if your Mac appears to be running slowly, you may wnt to close some of these applications. Look for the applications marked with a dot on your dock, right-click or Ctrl-click their icons, and select “Quit.” Prune Startup Programs RELATED: If your Mac is slow after you log in, it may have too many startup programs.

It was a really nice app to speed up web browsing experience. I hate adware and crapware too.

• Highlight the apps you don't want to open at startup and click the minus-sign button below the list of apps. Screenshot by Matt Elliott/CNET 5. Keep current with OS X Apple releases new versions of OS X as free upgrades, so there is no reason not to stay current. New versions of OS X contain performance enhancements and security improvements to keep your Mac running smoothly and safely.

(Before you defrag, shut all programs down and back up everything first. These two tutorials may help: and ) Have you run Disk Cleanup lately? This clears out the temporary files that can sometimes cause the computer to run slowly.

Solving slow mac performance using money to buy new hardware is one option of course. But you should try the others first. (Although SSD is extremely nice to have, you never want to go back!). Nowadays most macs are delivered with SSDs though. I hope this guide helps you to get your Mac in shape. If you liked this guide, it will really help me and this site if you share it with others on Facebook, twitter etc.

Computer specs are: • 21.5-inch Mid 2014 iMac • OSX Yosemite • 1.4GHz intel core i5 processor • 8GB 1600 MHz DDR3 memory • Intel HD Graphics 5000 1536MB Please help! Hey I think I just fixed this for myself. Looking at another forum post regarding Microsoft Word 15.29.1 acting very slow too, it says to go to: - System Preferences > Security & Privacy > Privacy Tab > Accessibility (on left menu), and disable any 3rd party apps that have certain controls over your computer.

If your formulas require a large amount of raw data, you might want to move the data to a separate worksheet and link the data to the sheet containing the formulas. Formulas should be as simple as possible to prevent any unnecessary calculations. If you use constants in a formula, calculate the constants before entering them into the formula, rather than having Microsoft Excel calculate them during each recalculation cycle.

How can I speed this process up? Turning off option DEFER LAYOUT UPDATE in table options doesn’t work here.when I make the update with it off it still takes the same, large amount of time. The source data has about 15,000 rows only, and if I remove the calculated items the speed problem goes away, so I am quite certain that is the root cause of the issue.any ideas on this one? Thanks in advance! Regarding #7. Keep formulas in a separate sheet This sounds interesting, but: - What does it mean? Most of my formulas are repeated for each data row.

SUMIF, COUNTIF, array formulas etc are very slow on big columns of data. 32 lives update for mac download. Sorting can filter a table to records that share the same attribute and range formulas can pick up row numbers to only select a sorted block of values. Tips for Formula speeding up by Krishna Khemraj I work with large workbooks with extensive formula throughout.

I used clear all option from the last cell from where I have data to the last cell it went when I pressed Ctrl+end.By doing this my file size came down from 12 MB to some 600kb. 🙂 Hope this helps someone. Tips for Everything else by Terry Hi, Great topic (as usual). One thing I like to do is minimize links between workbooks. Instead of using live links to import data I like to use import and export sheets. These are identical sheets on the origin workbook (for export) and the receiving workbook (for import). Values are calculated in the origin workbook and pasted to the receiver as values only.

Took about an hour. Jorge, I may be able to help you.

You can also set the delay between the time the alert appears and when it’s spoken to you. • (Optional) If you like, select either of these two check boxes: Announce When an Application Requires Your Attention or Speak Selected Text When the Key Is Pressed. They both do what they say they’ll do.

Uncheck 'Ignore Other applications that use Dynamic Data Exchange (DDE)'. Close and re-start Excel again. You should not get the error anymore.

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Which may be interesting but if you just want to fix lastcells and not have to doublecheck to see if it works you might use Debra Dalgleish's macro instead even though it takes longer it is more likely to solve the problem –, contextures.com, Debra Dalgleish Another indication is that the scroller on the vertical is small because it has to scroll through a lot of data but you don’t have a lot of data. Excel 97 and 2000 are better at updating the location of the lastcell than XL95, but if it is not corrected immediately you should use SAVE and then recheck. The most frequent source of lastcell problems is using the spacebar or the Del key to clear out a cell, neither of which return the cell to it’s pristine ISBLANK (never used) condition.