Free Conversion of XLSM to JSON by using CPP Cloud APIs & SDKs. Also Create, Edit & Render Microsoft Excel, CSV and SpreadsheetML worksheets or spreadsheet in the Cloud....XLSM", std::istream::binary); actual->seekg(0,std::ios_base::beg);...out("TestConvertFile_CPP.HTML", std::istream::binary); actual->seekg(0,std::ios_base::beg);...