Improve company productivity with a Business Account.Sign Up

x
?
Solved

Large Excel spreadsheet calculates when using VBA code to open a csv file

Posted on 2014-02-14
4
Medium Priority
?
1,287 Views
Last Modified: 2014-02-20
Environment: Windows 8.1, Excel 2013, 64 bit, 6 gigs RAM

I have a large (300 Mg) workbook which uses VBA code to open and load data from .csv files to various sheets.

When the code to open the .csv file executes, the main workbook goes into calculation mode (even though calculation is set to manual both in the excel formulas tab and in the VBA code)
This calculation can take up to 30 minutes each time a .csv file is opened ( about 12 of them).

This behavior just started, as previously over the last week of development, the .csv file would open instantly, The VBA code would copy and paste the data of interest into the appropriate sheet instantaneously.

I have used both Excel 2010 and 2013 64 bit to open the workbook and execute the code with the same results.  

I tried upgrading from windows 8.0 to 8.1 and still have the same results.

Please provide some specific steps which will stop the calculation behavior until the VBA module executes a range calculate or an application calculate instruction.

Thanks
0
Comment
Question by:wheat01
  • 2
4 Comments
 
LVL 19

Expert Comment

by:regmigrant
ID: 39860880
difficult to debug without a copy of the code but I would try adding the following before each file open:-

if application.calculation <>xlcalculationmanual Then
                  debug.print "not manual"& <some way of identifying where the code is at>
                  application.calculation = xlcalculationManual
          Endif

Open in new window


if the problem persists after this post back but at least it should prove the manual calc is in place before the file is read.
0
 
LVL 37

Expert Comment

by:Norie
ID: 39860890
Have you tried importing the data from the CSV file via Data>From Text?

That might stop the calculation that happens when you open a file.
0
 

Accepted Solution

by:
wheat01 earned 0 total points
ID: 39861696
Neither comment resolved the issue or lead to the resolution.  The workbook calculating in spite of having the calculation method set to manual for the workbook and issuing several application.calculation = xlCalculationManual statements in the code was resolved as follows:

Count = ThisWorkbook.Sheets.Count

For i = 1 To Count
  Sheets(i).EnableCalculation = False
Next

However, thanks for your input.
0
 

Author Closing Comment

by:wheat01
ID: 39872903
Reason is contained in my post. Thanks.
0

Featured Post

The 14th Annual Expert Award Winners

The results are in! Meet the top members of our 2017 Expert Awards. Congratulations to all who qualified!

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

This article presents several of my favorite code snippets.
While repairing a PST file with ScanPST.exe, many users have encountered the error "Attempting to Validate BBT Refcounts". In this article, we are going to describe the reasons and solution to fix the error.
Do you want to know how to make a graph with Microsoft Access? First, create a query with the data for the chart. Then make a blank form and add a chart control. This video also shows how to change what data is displayed on the graph as well as form…
Look below the covers at a subform control , and the form that is inside it. Explore properties and see how easy it is to aggregate, get statistics, and synchronize results for your data. A Microsoft Access subform is used to show relevant calcul…

606 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question