C++ 写数据到Excel

char chPath[MAX_PATH + 1] = {0};
std::string str = GetCurrDate();
const char *pPath = str.c_str();
//格式化文件名字
_snprintf(chPath, MAX_PATH, "%s/_data.csv", pPath,pPath);
FILE *fp;
fp = fopen(chPath,"a+");
if(fp == NULL)
{
fp = fopen(chPath,"w+");
if(fp == NULL)
{
EditLogInfo("写文件失败--文件打开失败");
delete pPath;
return;
}
}

char chTmp[1204] = {0};
sprintf(chTmp, "%d,%d,%d",1,2,3);
fprintf(fp, "%s", chTmp);
fclose(fp);
fp = NULL;
delete pPath;