Problems with lines using Save() function during Excel processing in Matlab

Invoke Error, Dispatch Exception:

Source: Microsoft Excel

Description: Save method of Workbook class failed

Help File: xlmain11.chm

Help Context ID: 0

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excelApp = actxserver('Excel.Application');
excelApp.DisplayAlerts = false;
excelApp.Visible = false;

workbook = excelApp.Workbooks.Open(fullfileName);
sheet = workbook.Sheets.Item(sheetNum);

shapes = sheet.Shapes;
shape = shapes.AddOLEObject([], pdfPath, 0,1,[],[],[],left,top,1,1);

workbook.Save;  % error occurred this line
workbook.Close(false);
excelApp.Quit;
delete(excelApp);

What's the problem?

I would appreciate it if you could let me know the number of all possible cases.

First of all, I don't think I took the wrong route..

I experimented with 4 to 5 PCs with the same code

On some PCs, the code runs well,

Another PC spits out such an error, so I wonder if this is an environmental problem.

[Mario Malic]

See this https://stackoverflow.com/questions/71573978/save-file-in-newly-created-folder-runtime-error-method-save-of-object-workbook

Also, try to save a file providing a full path to the directory with read/write access and see if the Save/SaveAs method works properly.