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Asked: 2026-06-12T13:18:09+00:00

I have a MFC/C++ project that uses the ActiveX Document (Automation) approach for opening

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I have a MFC/C++ project that uses the ActiveX Document (Automation) approach for opening Excel Sheet embedded object. Unfortunately, Excel.Sheet obj API does not have methods to load data from a prepeared htm/cvs file. So, I can not load the prepared data. The only object capable of loading data from a file is “Workbooks” (method Open(…)), but it always creates a new Sheet object, and does not use existing one. All examples of use embedded Excel.Sheet document offer to fill a table cell “by hand” and no one shows how to open an existing file in it.

So, how to load html/cvs datafile to Automated Excel Sheet document ?

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  1. Editorial Team

    As it turned out, there is no way to create ActiveX Excel Sheet Document initialized by file format does not coincide with xls/xlsx. First you need to convert the html format in xls/xlsx and then open through standart OLE API (OleCreateFromFile).
    A conversion I described in the link.

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