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To export spreadsheet data to other formats or platforms in C++, you can follow these steps:

1. Include the necessary header files: <iostream>, <fstream>, and <vector>.

2. Define a function exportSpreadsheetData that takes the filename of the export file and the data to be exported as input.

1void exportSpreadsheetData(const std::string& filename, const std::vector<std::vector<std::string>>& data) {
2    // Code to export data
3}

3. Inside the exportSpreadsheetData function, open the export file using an ofstream object.

1std::ofstream file(filename);

4. Check if the file was successfully opened, and handle the error if it fails.

1if (!file.is_open()) {
2    std::cout << "Failed to open file" << std::endl;
3    return;
4}

5. Iterate over the data to be exported, and write each cell to the file followed by a delimiter (e.g., comma).

1for (const auto& row : data) {
2    for (const auto& cell : row) {
3        file << cell << ',';
4    }
5    file << std::endl;
6}

6. Close the export file.

1file.close();

7. In the main function or wherever you want to use the exportSpreadsheetData function, provide the filename and data.

1std::vector<std::vector<std::string>> data {
2    {"John", "Doe", "john.doe@gmail.com"},
3    {"Jane", "Smith", "jane.smith@gmail.com"},
4    {"Bob", "Johnson", "bob.johnson@gmail.com"}
5};
6
7std::string filename = "_____________";
8exportSpreadsheetData(filename, data);

8. Finally, compile and run the program. The spreadsheet data will be exported to the specified file.

• A. data.txt
• B. output.csv
• C. results.xlsx
• D. export.dat

1int main() {
2    // Code to call exportSpreadsheetData
3    return 0;
4}