// For complete examples and data files, please go to https://github.com/groupdocs-text/GroupDocs.Text-for-.NET
//get file actual path
String filePath = Common.getFilePath(fileName);
CellsTextExtractor extractor = new CellsTextExtractor(filePath);
int sheetIndex = 0;
CellsSheetInfo sheetInfo = extractor.GetSheetInfo(sheetIndex);
Console.WriteLine(sheetInfo.ExtractSheet("B1", "C1"));