// For complete examples and data files, please go to https://github.com/aspose-slides/Aspose.Cells-for-Cloud
try {
    // Instantiate Aspose Storage API SDK
    StorageApi storageApi = new StorageApi(Configuration.apiKey, Configuration.appSID, true);
    // Instantiate Aspose Words API SDK
    CellsApi cellsApi = new CellsApi(Configuration.apiKey, Configuration.appSID, true);
    String input = "sample1.xlsx";
    Path inputFile = Utils.getPath(ChangeCellStyleWorksheet.class, input);
    String output = "sample2.xlsx";
    Path outputFile = Utils.getPath(ChangeCellStyleWorksheet.class, output);
    String sheetName = "Sheet1";
    String cellName = "A2";
    String cellArea = "A1:C3";
    int startRow = 3;
    int startColumn = 3;
    int totalRows = 1;
    int totalColumns = 1;   
    storageApi.PutCreate(input, null, Utils.STORAGE, inputFile.toFile());
    cellsApi.DeleteWorksheetConditionalFormattingArea(fileName, sheetName, startRow, startColumn, totalRows, totalColumns, null, null);
    com.aspose.storage.model.ResponseMessage sr = storageApi.GetDownload(input, null, Utils.STORAGE);
    Files.copy(sr.getInputStream(), outputFile, StandardCopyOption.REPLACE_EXISTING);
}
catch (Exception e) {
    e.printStackTrace();
}