06 Largescale with cellcaching sqlite3

03:22:19 ERROR: Unable to set Cell Caching using SQLite3 method, reverting to memory
03:22:19 Create new Spreadsheet object
03:22:19 Set properties
03:22:19 Add data
03:22:19 Hide 'Phone' and 'fax' columns
03:22:19 Set outline levels
03:22:19 Freeze panes
03:22:19 Rows to repeat at top
03:22:20 Write Xlsx format to /tmp/phpspreadsheet/06_Largescale_with_cellcaching_sqlite3.xlsx in 0.3385 seconds
03:22:20 Write Xls format to /tmp/phpspreadsheet/06_Largescale_with_cellcaching_sqlite3.xls in 0.1516 seconds
03:22:20 Peak memory usage: 24MB