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    <p>There's not quite enough detail to be sure what you're looking for, but the basic structure of what you want to do is going to look something like this:</p> <pre><code>open file.csv for writing for(iterate through one dimension of the array using i) { for(iterate through the other dimension of the array using j) { fprintf(yourfilehandle,"%d,",yourvalue[i][j]); } fprintf(yourfilehandle,"\n"); } close your file </code></pre> <p>As has been suggested by others, this will leave you with a <code>.CSV</code> file, which is a pretty good choice, as it's easy to read in and parse, and you can open your file in Notepad or Excel and view it no problems.</p> <p>This is assuming you really meant to do this with C file I/O, which is a perfectly valid way of doing things, some just feel it's a bit dated.</p> <p>Note this leaves an extraneous comma at the end of the line. If that bugs you it's easy enough to do the pre and post conditions to only get commas where you want. Hint: it involves printing the comma before the entry inside the second for loop, reducing the number of entries you iterate over for the interior for loop, and printing out the first and last case of each row special, immediately before and after the inner for loop, respectively. Harder to explain that to do, probably.</p> <p><a href="http://en.wikipedia.org/wiki/C_file_input/output" rel="nofollow">Here is a reference</a> for C-style file I/O, and <a href="http://www.cprogramming.com/tutorial/cfileio.html" rel="nofollow">here is a tutorial</a>.</p>
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    1. POHow to save a 2-Dimensional array to a file in C?
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    1. COThanks for this I will read more on this. Also I am planning to port it to a digital signal processor so will .csv files work properly ?
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    2. CODoes your DSP even have a filesystem? Are you programming it in C or assembly? DSPs are meant to process signals not parse text files so given how low-level DSPs are, you'll probably want to define your format at the byte level.
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    3. CO@alexroussos is right about DSP boards. I'd check to make sure you can write files to it. I've seen some that take C and do have filesystems, so this is not out of the realm of possibility, but it's certainly not guaranteed.
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