Quickbooks Data File Optimization Quickbooks data files larger than 500MB need to be optimized every 6-12 months to ensure they run at top performance. There is no internal functionality in Quickbooks to optimize the data file other than running a condense. The optimize operation will copy all data into a new data file, remove unwanted temporary data, and audit trail data to bring down file size by 25-40%. This will improve the performance and stability of the data file. #Quickbooks_Data_File_Optimization https://quickbooksrepairpro.com/Quickbooks-File-Optimization-Service.aspx