 which file is to be read and written to and must be passed  to the functions such as ReadInt() and WriteInt().

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Note extreme care needs to be exercised when updating files that contain strings  since these are not fixed in length.
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See also: <a class=small href=ReadFile.htm>ReadFile</a>, <a class=small href=WriteFile.htm>WriteFile</a>, <a class=small href=CloseFile.htm>CloseFile</a>, <a class=small href=SeekFile.htm>SeekFile</a>.
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<h1><a href=../2d_examples/OpenF