sheetIndex
The zero-based index of the sheet to use within the file. For files that contain multiple sheets, this identifies which sheet to read. Files that contain a single sheet, or that have no concept of sheets, use sheet 0.
The zero-based index of the sheet to use within the file. For files that contain multiple sheets, this identifies which sheet to read. Files that contain a single sheet, or that have no concept of sheets, use sheet 0.