Low-level File I/O Functions

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File Opening and Closing               
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fclose    Close file.  
fopen     Open file.   
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Unformatted I/O                               
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fread      Read binary data from file.  
fwrite     Write binary data to file.   
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Formatted I/O                                                   
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fgetl      Read line from file, discard newline character.  
fgets      Read line from file, keep newline character.     
fprintf    Write formatted data to file.                    
fscanf     Read formatted data from file.                   
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File Positioning                                  
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feof       Test for end-of-file.           
ferror     Inquire file I/O error status.  
frewind    Rewind file.                    
fseek      Set file position indicator.    
ftell      Get file position indicator.    
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String Conversion                                     
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sprintf    Write formatted data to string.    
sscanf     Read string under format control.  
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Specialized File I/O                                                      
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csvread    Read a file of comma separated values.              
csvwrite   Write a file of comma separated values.           
uigetfile  Retrieve name of file to open through dialog box.   
uiputfile  Retrieve name of file to write through dialog box.  
wk1read    Read a Lotus123 WK1 spreadsheet file.               
wk1write   Write a Lotus123 WK1 spreadsheet file.              
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(c) Copyright 1994 by The MathWorks, Inc.