Method 'save' in COM object of class 'Excel.Application' returned error code 0x800A03EC ()

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Posted on by Xruiz

I am trying to export a table from Ax2009 to excel, however, I get the following error Method 'save' in COM object of class 'Excel.Application' returned error code 0x800A03EC (<unknown>) which means: Save method of Application class failed. :(

Can someone please help me?
Thanks!

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Microsoft Dynamics AX

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Holly Huffman 6,530 Super User 2025 Season 2 on at

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Hi there! Good morning, evening, or afternoon - depending on where you are :) Hope you are well today!

The error "Method 'save' in COM object of class 'Excel.Application' returned error code 0x800A03EC" typically occurs due to issues with Excel automation. Here are some steps to troubleshoot and resolve the issue:

1. Verify File Path and Permissions

Ensure the file path where you're trying to save the Excel file is valid and accessible.

Avoid saving to restricted locations like the root of the C: drive. Instead, use a folder like C:\Users\[YourUser]\Documents.

Confirm that the user running the AX2009 process has write permissions for the target folder.

2. Check for File Overwrite Conflicts

If a file with the same name already exists in the target location, Excel might fail to overwrite it.

Try saving the file with a unique name or delete the existing file before running the export.

3. Ensure Excel is Properly Installed and Configured

Verify that Excel is installed on the machine running AX2009.

Check for any disabled add-ins or issues with the Excel installation. You can repair the Office installation if needed.

4. Adjust AX2009 Code for Export

Review the X++ code used for exporting to Excel. Ensure the SaveAs method is used correctly.

Example of proper usage in X++:
COM excelApp, workbook;
str filePath = "C:\\Users\\YourUser\\Documents\\ExportedFile.xlsx";

excelApp = COM::create("Excel.Application");
workbook = excelApp.Workbooks().Add();

// Add data to the workbook here...

workbook.SaveAs(filePath);
excelApp.Quit();

Ensure the file path is valid and properly escaped (e.g., use double backslashes \\ in the path).

5. Close Background Excel Processes

If multiple Excel instances are running in the background, they can cause conflicts.

Open Task Manager and end any Excel processes before running the export again.

6. Debug the Error

Add error-handling logic in your X++ code to capture more details about the issue.

Example:
try
{
workbook.SaveAs(filePath);
}
catch (Exception::Error)
{
info("Error saving the Excel file. Please check the file path and permissions.");
}

7. Test with a Simple Export

Simplify the export process to isolate the issue. For example, try exporting a small table or dataset to see if the problem persists.

Hope this helps!

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Jonas "Jones" Melgaard 4,926 Most Valuable Professional on at

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Moved from the General forum to the Finance forum that supports Dynamics AX, hope you don't mind.
What version of Excel are you running, and are you running the AX client on your local computer or remote.

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Xruiz 8 on at

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Jonas "Jones" Melgaard

The version of excel is 2013 and I am running Ax on a remote computer, in a virtual machine

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Jonas "Jones" Melgaard 4,926 Most Valuable Professional on at

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It's tough to say as I don't have an AX 2009 sandbox anymore, unfortunately. Are you just doing a normal export to excel from a form?

Unless you are running a really old version of AX 2009 of course. Support for O2013 came in SP1 Rollup 8.

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