MATLAB: Am I unable to use XLSREAD to read an Excel file created in Excel 2007 into MATLAB 7.3 (R2006b)

dataimportMATLABxlswrite

I am trying to read a file "myfile.xlsx" created in Excel 2007 into MATLAB using XLSREAD. However I receive the following error:

 ??? Error using ==> xlsread
 File C:\myfile.xlsx not in Microsoft Excel Format.

Best Answer

In order to read a Microsoft Excel 2007 file into MATLAB using the XLSREAD command, the full release of Excel 2007 must be installed on the machine. XLSREAD cannot read Excel 2007 files if only an older version of Excel is installed.

Related Solutions

MATLAB: How to add a Header or a Footer to an EXCEL worksheet using MATLAB 7.7 (R2008b)

The ability to programmatically add the Header and Footer to an Excel worksheet can be implemented in MATLAB using the COM interface.

The ACTXSERVER command can be used to create a COM server running Microsoft Excel. You can then add the Header and Footer using the different methods for the workbook and then call XLSWRITE to write the data to the Excel worksheet as follows:

a = actxserver('Excel.Application');
a.Visible =1;
a.Workbooks.Add;
a.activeWorkbook.activesheet.PageSetup.LeftFooter = 'MyFooter';
a.activeWorkbook.activesheet.PageSetup.LeftHeader = 'MyHeader';
a.activeWorkbook.SaveAs('test.xlsx');
a.activeWorkbook.Close;
xlswrite('test.xlsx',[1 2 3]);

The following options can also be modified in a similar way:

a.activeWorkbook.activeWorksheet.PageSetup.CenterHeader 
a.activeWorkbook.activeWorksheet.PageSetup.RightHeader 
a.activeWorkbook.activeWorksheet.PageSetup.CenterFooter 
a.activeWorkbook.activeWorksheet.PageSetup.RightFooter

MATLAB: How to open an existing Excel file and communicate with it using ActiveX

This bug has been fixed in Release 14 Service Pack 3 (R14SP3). For previous product releases, read below for any possible workarounds:

The following provides an example of opening an existing Excel file named example.xls and proceeding to write and read with it:

% Specify file name
file = 'D:\Applications\MATLAB701\work\example.xls'; % This must be full path name
% Open Excel Automation server
Excel = actxserver('Excel.Application');
Workbooks = Excel.Workbooks;
% Make Excel visible
Excel.Visible=1;
% Open Excel file
Workbook=Workbooks.Open(file);
% Specify sheet number, data, and range to write to 
sheetnum=1;
data=rand(4);  % use a cell array if you want both numeric and text data
range = 'F10:I13';
% Make the first sheet active
Sheets = Excel.ActiveWorkBook.Sheets;
sheet1 = get(Sheets, 'Item', sheetnum);
invoke(sheet1, 'Activate');
Activesheet = Excel.Activesheet;
% Put MATLAB data into Excel
ActivesheetRange = get(Activesheet,'Range',range);
set(ActivesheetRange, 'Value', data);
% Here you might manipulate the data in Excel
% Now read the data from the sheet; you could specify a new range here
Range = get(Activesheet,'Range',range);
out = Range.value;
% Save file
invoke(Workbook,'Save')
% Close Excel and clean up
invoke(Excel,'Quit');
delete(Excel);
clear Excel;

Best Answer

Related Solutions

MATLAB: How to add a Header or a Footer to an EXCEL worksheet using MATLAB 7.7 (R2008b)

MATLAB: How to open an existing Excel file and communicate with it using ActiveX

Related Question