MATLAB: Adding data into existing excel sheet from matlab

xlswrite

I have an excel sheet 'myvalues.xlsx' cosisting of 200 vectors of 127bits each. Now I want to add another vector to my excel sheet which will be placed as the 201th row without changing the existing data. How can I acheive it. Have tried xlswrite but its not working.

Best Answer

It seems that variable "mydata" is of size [1x3] but the size of the range you elected is [1x1] (i.e. a single excel cell rather than a range of cells) in

xlCurrRange = xlsheet.Range(['A' num2str(newRange)]); 
% ['A' num2str(newRange)] = 'A301' since newRange appears to be the scalar 1 which is added to 300

I think that instead of 'A301' you want to have 'A301:C301' which is

xlsheet.Range(['A', num2str(newRange),':C', num2str(newRange)]);

which should capture the full [1x3] size of "mydata"

Is this it or have I misunderstood?

Related Solutions

MATLAB: How to rename a sheet in Excel using the COM interface in MATLAB

You can rename an Excel sheet using the "Name" property of a sheet object. For example the following renames the first sheet of an Excel file:

filename = 'C:\SomeExcelFile.xls';
% Open Excel Automation server
Excel = actxserver('Excel.Application');
% Make Excel visible
Excel.Visible=1;
% Open Excel file
Workbook = Excel.Workbooks.Open(filename);
% Get the list of sheets in the workbook
Sheets = Excel.ActiveWorkbook.Sheets;
% Rename the first sheet
Sheets.Item(1).Name = 'This is sheet 1';

The following code then saves the Workbook, quits Excel and removes the COM server:

% Save the file
Workbook.Save();
% Quit Excel, remove the COM server and delete the related objects
Excel.Quit();
Excel.delete();
clear Excel;
clear Workbook;
clear Sheets;

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 rename a sheet in Excel using the COM interface in MATLAB

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

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