asked on

Excel sheet - Calculating 4 processors !

Hello,

I appreciate your help on the below concerning the performance of an excel workbook.

I have build a new excel model of c. 5KB however all of a sudden it became 43 179 KB in size !!! When calculating it is obviously extremely slow requiring 4 processors to calculate.

How can i fix this excel model to bring it down to its original size please to improve its performance.

Thanks,
Christianne

Serena Hsi

Usually if you have data filters or pivot tables on the sheets it causes the workbook to balloon in size. Remove the data filters and then save the file.

Tomas Valenta

This article shows you how to improve calculation speed and how to build better Excel sheets:
https://msdn.microsoft.com/en-us/library/office/ff700515%28v=office.14%29.aspx?f=255&MSPPError=-2147217396
Also this link tells you some tips and tricks:
http://professor-excel.com/15-ways-to-speed-up-excel/
For your case I recommend to turn off automatic recalculation (do it manually), turn off add-ons you do not need, save the file as binary - xlsb and check your calculations against best practises in articles above.

Professor J

my friend Charles Williams is is a world leader at making Excel go faster.

Charles runs a blog dedicated to speeding up Excel and webstie Decision Models which is host to a suite of performance utilities for Excel.

please confirm if you are using any of of the below volatile functions in your model

AREAS() INDEX() OFFSET() CELL() INDIRECT() ROWS() COLUMNS() NOW() TODAY() RAND()

Christianne Cardona

ASKER

Hi,

i am using TODAY() formula in my model.

Are there any implications with this please?

ASKER CERTIFIED SOLUTION

Rob Henson

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Professor J

how many times TODAY() function is used in your model?

TODAY() function is super voilatile and i suspect this is the culprit that made your spreadsheet very slow.

Rob Henson

Also, take a look at Conditional Formatting. If there are multiple occurrences of the same rule for different cells (rather than one rule for a range) these can take time to recalculate; particularly if they use volatile functions like ProfJJ mentions.

Christianne Cardona

ASKER

Rob,

Thanks alot for your solution. I managed to reduce the workbook down to 2500KB !!!!

This has been definitely my issue.

Thanks alot once again.

Christianne

Rob Henson

Extended Used Range or Conditional Formatting???

Christianne Cardona

ASKER

Hello Rob,

This worked and im sooooooo pleased :):):). My excel doc dropped down to 2500KB from 44000 KB :):):).

Thanks alot for your input.

Regards,
Christianne

Rob Henson

Glad to be of assistance!