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I am executing Excel 2007 VBA programs on a DELL OPTIPLEX 760 with 3.2 gig and a Dual Core processor. &nbsp;The programs are processor intensive. Actual functions that are called frequently in the execution of the programs are cuts and pastes, sorts, finds, and VLOOKUP. &nbsp;The worksheets are loaded data from several large files, and the size of the workbook is around 92Mb. To avoid overhead, the display function is turned off as much as possible.<br />
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After some time of execution, the performance becomes very sluggish. &nbsp;I try saving the workbook, and closing Excel, and I then restart the program where it left off, but the performance is still poor. <br />
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Restarting the computer does help, but I would like to understand what is causing the poor performance so that I can aleviate the issues such that I can keep the programs working at optimal speed.
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I am executing Excel 2007 VBA programs on a DELL OPTIPLEX 760 with 3.2 gig and a Dual Core processor.  The programs are processor intensive. Actual functions that are called frequently in the execution of the programs are cuts and pastes, sorts, finds, and VLOOKUP.  The worksheets are loaded data from several large files, and the size of the workbook is around 92Mb. To avoid overhead, the display function is turned off as much as possible.

After some time of execution, the performance becomes very sluggish.  I try saving the workbook, and closing Excel, and I then restart the program where it left off, but the performance is still poor. 

Restarting the computer does help, but I would like to understand what is causing the poor performance so that I can aleviate the issues such that I can keep the programs working at optimal speed.

Causes of Slow Processing Excel VBA Programs

Microsoft Excel topics include formulas, formatting, VBA macros and user-defined functions, and everything else related to the spreadsheet user interface, including error messages.

Microsoft Excel

Microsoft applications include a variety of software programs, including development and digital authoring programs (Expression and Media Center), educational programs, Internet software, including Essentials, Skype and the Live family, anti-virus, productivity applications and suites like Office, Excel, Word, Outlook, Access and PowerPoint, video games and server applications such as Exchange, SharePoint, IIS and Virtual Server.

Microsoft Applications

Microsoft Office is an integrated suite of applications that includes Outlook, Word, Excel, Access, PowerPoint, Visio and InfoPath, along with a number of tools to assist in making the individual components work together. Coding within and between the projects is done in Visual Basic for Applications, known as VBA.