Unicode C Requires Chilkat v11.3.0+

XLSX Convert Sheet to CSV

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

#include <C_CkZipW.h>
#include <C_CkCsvW.h>
#include <C_CkStringTableW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkZipW zip;
    HCkCsvW csv;
    HCkStringTableW sheetNames;
    const wchar_t *sheetName;
    const wchar_t *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 = CkZipW_Create();
    success = CkZipW_OpenZip(zip,L"qa_data/excel/fakeCompanies.xlsx");
    if (success == FALSE) {
        wprintf(L"%s\n",CkZipW_lastErrorText(zip));
        CkZipW_Dispose(zip);
        return;
    }

    csv = CkCsvW_Create();
    sheetNames = CkStringTableW_Create();
    success = CkCsvW_XlsxGetSheets(csv,zip,sheetNames);
    if (success == FALSE) {
        wprintf(L"%s\n",CkCsvW_lastErrorText(csv));
        CkZipW_Dispose(zip);
        CkCsvW_Dispose(csv);
        CkStringTableW_Dispose(sheetNames);
        return;
    }

    if (CkStringTableW_getCount(sheetNames) == 0) {
        wprintf(L"There are no sheets in the .xlsx\n");
        CkZipW_Dispose(zip);
        CkCsvW_Dispose(csv);
        CkStringTableW_Dispose(sheetNames);
        return;
    }

    //  Get the name of the 1st sheet.
    sheetName = CkStringTableW_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 = CkCsvW_XlsxLoadSheet(csv,zip,sheetName);
    if (success == FALSE) {
        wprintf(L"%s\n",CkZipW_lastErrorText(zip));
        CkZipW_Dispose(zip);
        CkCsvW_Dispose(csv);
        CkStringTableW_Dispose(sheetNames);
        return;
    }

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

    csvStr = CkCsvW_saveToString(csv);
    wprintf(L"%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 = CkCsvW_SaveFile2(csv,L"c:/temp/qa_output/fakeCompanies.csv",L"utf-8");
    if (success == FALSE) {
        wprintf(L"%s\n",CkCsvW_lastErrorText(csv));
        CkZipW_Dispose(zip);
        CkCsvW_Dispose(csv);
        CkStringTableW_Dispose(sheetNames);
        return;
    }



    CkZipW_Dispose(zip);
    CkCsvW_Dispose(csv);
    CkStringTableW_Dispose(sheetNames);

    }