(C) XLSX Convert Sheet to CSV

Open an Excel spreadsheet (.xlsx) and loads a sheet into a CSV object.

Note: This example requires Chilkat v11.3.0 or greater.

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#include <C_CkZip.h>
#include <C_CkCsv.h>
#include <C_CkStringTable.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkZip zip;
    HCkCsv csv;
    HCkStringTable sheetNames;
    const char *sheetName;
    const char *csvStr;

    success = FALSE;

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // .xlsx files are Zip archives
    zip = CkZip_Create();
    success = CkZip_OpenZip(zip,"qa_data/excel/fakeCompanies.xlsx");
    if (success == FALSE) {
        printf("%s\n",CkZip_lastErrorText(zip));
        CkZip_Dispose(zip);
        return;
    }

    csv = CkCsv_Create();
    sheetNames = CkStringTable_Create();
    success = CkCsv_XlsxGetSheets(csv,zip,sheetNames);
    if (success == FALSE) {
        printf("%s\n",CkCsv_lastErrorText(csv));
        CkZip_Dispose(zip);
        CkCsv_Dispose(csv);
        CkStringTable_Dispose(sheetNames);
        return;
    }

    if (CkStringTable_getCount(sheetNames) == 0) {
        printf("There are no sheets in the .xlsx\n");
        CkZip_Dispose(zip);
        CkCsv_Dispose(csv);
        CkStringTable_Dispose(sheetNames);
        return;
    }

    // Get the name of the 1st sheet.
    sheetName = CkStringTable_stringAt(sheetNames,0);

    // Load the 1st sheet into the CSV.
    // We could've also loaded the 1st sheet by passing an empty string for the sheet name.
    success = CkCsv_XlsxLoadSheet(csv,zip,sheetName);
    if (success == FALSE) {
        printf("%s\n",CkZip_lastErrorText(zip));
        CkZip_Dispose(zip);
        CkCsv_Dispose(csv);
        CkStringTable_Dispose(sheetNames);
        return;
    }

    // The Chilkat CSV API can now be used to read, modify, or insert cells.
    // ...
    // ...

    csvStr = CkCsv_saveToString(csv);
    printf("%s\n",csvStr);

    // Sample output:
    // CompanyName,Address,City,State,Zip,Phone
    // Acme Innovations LLC,7428 Westbrook Blvd,Oak Bend,IL,60514,630-555-2398
    // BlueHorizon Data Systems,1850 Crestline Park Suite 210,Rivergate,CA,92814,714-555-8821
    // Pinnacle Manufacturing Corp,3912 Industrial Loop,Maple Ridge,TX,77301,281-555-4477
    // Evergreen Analytics Inc,1250 Highland Terrace,Stonefield,WA,98290,425-555-9914
    // NovaTech Solutions Group,578 Marketview Drive,Clearwater,FL,33760,727-555-6032

    // Save to a .csv file.
    success = CkCsv_SaveFile2(csv,"c:/temp/qa_output/fakeCompanies.csv","utf-8");
    if (success == FALSE) {
        printf("%s\n",CkCsv_lastErrorText(csv));
        CkZip_Dispose(zip);
        CkCsv_Dispose(csv);
        CkStringTable_Dispose(sheetNames);
        return;
    }



    CkZip_Dispose(zip);
    CkCsv_Dispose(csv);
    CkStringTable_Dispose(sheetNames);

    }