Octave excel file

Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Stack Gives Back Safety in numbers: crowdsourcing data on nefarious IP addresses. Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually. Related Hot Network Questions. If an error occurs, fid is set to -1 and msg contains the corresponding system error message.

The mode is a one or two character string that specifies whether the file is to be opened for reading, writing, or both. The second form of the fopen function returns a vector of file ids corresponding to all the currently open files, excluding the stdin , stdout , and stderr streams.

The third form of the fopen function returns information about the open file given its file id. If necessary, binary numeric values will be read assuming they are stored in IEEE format with the least significant bit first, and then converted to the native representation. Opening a file that is already open simply opens it again and returns a separate file id.

It is not an error to open a file several times, though writing to the same file through several different file ids may produce unexpected results. Append a "t" to the mode string to open the file in text mode or a "b" to open in binary mode. See also: fread , textread , sscanf. It is possible to write data to a file in a similar way to the disp function for writing data to the screen.

The fdisp works just like disp except its first argument is a file pointer as created by fopen. See Opening and Closing Files , for details on how to use fopen and fclose. The value of r specifies the number of delimiter-only lines to add to the start of the file.

Either "on" or "off". See "-append" above. The character s to use to separate each row. Three special cases exist for this option. Any other value is used directly as the newline separator.

The precision to use when writing the file. It can either be a format string as used by fprintf or a number of significant digits. See also: dlmread , csvread , csvwrite. Read the matrix data from a text file which uses the delimiter sep between data values. If sep is not defined the separator between fields is determined from the file itself. Given two scalar arguments r0 and c0 , these define the starting row and column of the data to be read.

These values are indexed from zero, such that the first row corresponds to an index of zero. The range parameter may be a 4-element vector containing the upper left and lower right corner [ R0 , C0 , R1 , C1 ] where the lowest index value is zero.

Alternatively, a spreadsheet style range such as "A Q15" or "T1:AA5" can be used. The lowest alphabetical index 'A' refers to the first column. The lowest row index is 1. In the latter case, the file is read until end of file is reached. The "emptyvalue" option may be used to specify the value used to fill empty fields. The default is zero.

See also: csvread , textscan , textread , dlmwrite. Write the matrix x to the file filename in comma-separated-value format. See also: csvread , dlmwrite , dlmread. See also: csvwrite , dlmread , dlmwrite. The file filename is read and parsed according to format. The function behaves like strread except it works by parsing a file instead of a string.