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Excel, like all Office apps, exposes a Document Object Model as a COM interface, which can be manipulated from C and C++. The interface allows you to control all aspects of Excel, including the creation and manipulation of Excel spreadsheets. This is by no means a simple topic but the following links should point you in the right directions.<br />
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<a href="http://support.microsoft.com/kb/196776/" rel="ugc">http://support.microsoft.com/kb/196776/</a><br />
<a href="http://support.microsoft.com/kb/216686/" rel="ugc">http://support.microsoft.com/kb/216686/</a><br />
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Interfacing with COM in C rather than C++ is a little tricky because COM objects are designed around the ABI (Application Binary Interface) of C++; however, COM is designed to be language agnostic, so it is possible. <br />
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This link is specific to interfacing using C rather than C++<br />
<br />
<a href="http://support.microsoft.com/kb/181473/" rel="ugc nofollow">http://support.microsoft.com/kb/181473/</a>
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Excel, like all Office apps, exposes a Document Object Model as a COM interface, which can be manipulated from C and C++. The interface allows you to control all aspects of Excel, including the creation and manipulation of Excel spreadsheets. This is by no means a simple topic but the following links should point you in the right directions.

http://support.microsoft.com/kb/196776/ [http://support.microsoft.com/kb/196776/]
http://support.microsoft.com/kb/216686/ [http://support.microsoft.com/kb/216686/]

Interfacing with COM in C rather than C++ is a little tricky because COM objects are designed around the ABI (Application Binary Interface) of C++; however, COM is designed to be language agnostic, so it is possible.

This link is specific to interfacing using C rather than C++

http://support.microsoft.com/kb/181473/ [http://support.microsoft.com/kb/181473/]

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how can i write datas into cols and rows of &nbsp;an excel file with c codes
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how can i write datas into cols and rows of  an excel file with c codes

managing excel files with c

C is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations. By design, C provides constructs that map efficiently to typical machine instructions, so it has found lasting use in applications that had formerly been coded in assembly language, including operating systems as well as various application software for computers ranging from supercomputers to embedded systems. It is distinct from C++ (which has its roots in C) and C#, and many later languages have borrowed directly or indirectly from C.