About EXCEL Resource Loss Error

Moore Felicity 0 Reputation points
2026-08-28T07:35:59.3366667+00:00

When I open EXCEL, I get the following error and it does not open.

Please tell me how to eligibility.

There is not enough memory to complete this operation.

Reduce the amount of data you handle or close other applications.

To increase the memory available, consider the following:

Use the 64-bit version of Microsoft Excel.

Microsoft 365 and Office | Excel | For education | Windows
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  1. AI answer

    2026-08-28T07:36:17.1633333+00:00

    This error usually means Excel is running out of available memory resources, especially with large files, many workbook features, add-ins, or when other applications are using memory.

    Try these steps in order:

    1. Install the latest Windows and Office updates
      • Update Windows.
      • Update Office to the latest version.
      • For 32-bit Excel 2013 and 2016, the latest Office updates enable Large Address Aware support, which can increase available memory on supported systems.
    2. Disable Excel add-ins
      • In Excel, disable add-ins and test again.
      • If the error stops, an add-in is likely interfering.
    3. If using Shared Workbook, delete Custom Views
      • Go to View ribbon.
      • Open Custom Views.
      • Delete the custom views.
      • This does not delete worksheet data, but it does remove print areas and filters, which can be reapplied.
    4. On Windows 7, disable Preview Pane and Details Pane
      • In Windows Explorer: Organize > Layout and clear Details Pane and Preview Pane.
      • In Excel File > Open: Organize > Layout and clear Details Pane and Preview Pane.
    5. Test a different default printer
      • Close Excel.
      • Open Devices and Printers.
      • Set Microsoft XPS Document Writer as the default printer.
      • Excel uses the default printer when rendering files, and printer issues can trigger this error.
    6. Temporarily test without antivirus scanning
      • Antivirus can cause random Excel memory errors by scanning the file continuously.
      • Temporarily disable scanning for Excel files and test.
    7. Close other applications or restart Windows
      • If the error improves after a reboot or after closing apps, other processes are consuming memory needed by Excel.
    8. Use 64-bit Excel for large files
      • 32-bit Excel has a 2-GB memory limitation per instance.
      • 64-bit Excel can use available physical RAM and is recommended for large workbooks.
    9. If the workbook is large, reduce workbook memory usage
      • Large workbooks and workbooks with many features use more memory in newer Excel versions.
      • Cleaning up the workbook can reduce memory use.

    If the error appears when copying or filling formulas across a very large range, that can also be caused by Excel 32-bit limits. In that case:

    • Fill smaller sections at a time.
    • Continue from the last one or two filled rows.
    • For very large workbooks, split the work into smaller workbooks and open them in separate Excel instances.
    AI-generated content may be incorrect. Read our transparency notes for more information.

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  2. BabybooHN 2,955 Reputation points Independent Advisor
    2026-08-28T07:57:10.8933333+00:00

    Dear @Moore Felicity

    I understand how frustrating it is when Excel fails to launch due to a "Not enough memory to complete this operation" error.

    This error typically occurs when Excel runs out of its allocated memory space. Even on computers with ample total RAM, the 32-bit version of Excel is capped at 2 GB or 4 GB of virtual memory, which can quickly be exhausted by corrupt add-ins, overly large default templates, or conflicting background processes.

    Here are the step-by-step methods to resolve this issue and get Excel running again.

    Step 1: Open Excel in Safe Mode

    To determine if a corrupted startup file or third-party add-in is preventing Excel from launching, start Excel in Safe Mode:

    Press Windows Key + R on your keyboard to open the Run dialog box.

    Type excel /safe and press Enter (note the space before /safe).

    If Excel opens successfully in Safe Mode, disable your add-ins:

    • Go to File > Options > Add-ins.
    • Select COM Add-ins from the Manage drop-down menu at the bottom and click Go.
    • Uncheck all active add-ins and click OK.
    • Close and restart Excel normally. User's image

    Step 2: Repair Microsoft Office

    If the issue persists, a system file or installation component may be corrupted. Performing an Office Repair often resolves resource allocation glitches.

    • Right-click the Start button and select Installed Apps (or Apps & Features).
    • Locate Microsoft 365 (or your version of Office) in the list.
    • Click the three dots (or select the app) and choose Modify.
    • Select Quick Repair first, and click Repair.
    • If Quick Repair does not fix the issue, run Online Repair for a more comprehensive fix.

    Please refer to this document: Repair an Office application

    Step 3: Verify Your EDU Account License

    Most school-provided Office 365 accounts include full desktop app rights (Office 365 A3 or A5 licenses). However, some student accounts (Office 365 A1) only permit web-based usage.

    • Open a web browser and go to portal.office.com.
    • Sign in with your school email address and password.
    • Click your profile icon in the top-right corner and select View account.
    • Go to Subscriptions. Under Assigned licenses, look for "The latest desktop version of Office".

    If present, proceed to Step 4.

    If you do not see desktop rights, your institution limits account usage to Excel for the Web, or you will need to contact your school's IT Helpdesk to request a desktop license.

    Step 4: Reinstall Office as 64-Bit via Your EDU Portal

    Upgrading to 64-bit Excel removes the 2 GB/4 GB memory limit, allowing Excel to use all the physical RAM installed on your PC.

    • Uninstall the current 32-bit installation:
    • Go to Windows Settings > Apps > Installed Apps (or Apps & Features).
    • Find Microsoft 365 Apps (or Microsoft Office), click the three dots, and select Uninstall. (Note: Your local files, documents, and school account data will not be deleted).

    Download the 64-bit version:

    • Log into portal.office.com with your Edu account.
    • On the home page, click Install apps near the top right, then select Microsoft 365 apps (or Other install options).
    • Ensure 64-bit is selected (this is the default setting for modern Microsoft 365 installs) and click Install.

    For additional official documentation on managing Excel memory allocation and resolving startup failures, you can refer to Microsoft's official guidance:

    How to clean up an Excel workbook so that it uses less memory

    Excel performance: Improving resource usage

    Please try these steps, and let me know if you need any further assistance. I am happy to help you get this resolved.

    If the answer is helpful, please click "Yes" and kindly upvote it. If you have extra questions about this answer, please click "Comment".   

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