| Files and Folders | Definition | Delete Yes/No | What will happen when deleted? |
| _default_user_.cac | Holds user license info for Default user | Yes | Recreates |
| Address.dat | Contains all Bill-to/Ship-to address of customers and mail-to/remit-to addresses of vendors | No | Corrupts Database |
| AdvData.dat | Sage Advisor data related to user interactions. | Yes | Recreates Empty |
| AdvHist.dat | Sage Advisor history of advice related to user. | Yes | Recreates Empty |
| Aflocat.dat | Contains Auto-Fill data for Address fields only. | Yes | Recreates Empty (Run DV to repopulate) |
| Alarm.dat | Helper file for Alerts. | Yes | Recreates Empty (Alarms will be lost) |
| Alert.dat | Contains Alert information entered through Tasks, Action Items, Alerts. This includes alert email criteria. | Yes | Recreates Empty (Alerts will be lost) |
| Apiaccss.dat | Regulates third-party SDK client applications access to company files | Yes | (must reauthorize third-party apps with company file) |
| Atmntbdl.dat | Contains the necessary information for Sage 50—U.S. Edition to locate the attached file inside the attachments directory and reference what maintenance or transactional record it is associated with. | Yes | Recreates Empty (Attachments will still exist, but the relationship to Sage 50 and the attachments will be lost. Must restore complete backup) |
| Attchmnt.dat | Contains the necessary information for Sage 50 to locate the attached file inside the attachments directory and reference what maintenance or transactional record it is associated with. | Yes | Recreates Empty (Attachments will still exist, but the relationship to Sage 50 and the attachments will be lost. Must restore complete backup) |
| Audittr.dat | Contains Audit Trail Report information | Yes | Recreates Empty (Audit Trail will be lost) |
| Avgdtpay.dat | AverageDayToPayfileName: Added with the Cash Flow feature. It looks like this file is not currently used. | Yes | Asked to recreate on open company. |
| Bankrec.dat | Contains Account Reconciliation information (but not cleared checklist). | No | Corrupts Database |
| Bddetail.dat | Budget Detail | No | Corrupts Database |
| BomHist.dat | Contain revisions to the Bill of Materials for Assembly Items | No | Corrupts Database |
| BomItems.dat | Contains Bills of Materials for Assembly Items | No | Corrupts Database |
| Budget.dat | Budget List Information | No | Corrupts Database |
| Budgetar.dat | ArchivedBudgetSummaryfileName: Added for the Prior Year Reporting feature | No | Corrupts Database - you will lose any summary prior year transactions for reporting. |
| Cashflow.dat | CashFlowfileName: Looks like this was included in the database for future expansion to allow for multiple cash flow projections, but currently Sage 50 only does one. | Yes | Asked to recreate on company. |
| Cfacct.dat | CashFlowAccountfileName: New accounts on the "Starting Cash" tab | No | Corrupts Database - you will lose any new cash flow accounts you've added. |
| Cftrans.dat | CashFlowTransactionsfileName: Edited and added transactions on the "Expected Incoming Cash" and "Expected Outgoing Cash" tabs | No | Corrupts Database - you will lose any new cash flow accounts you've added. |
| Chart.dat | Contains Chart of Account information | No | Corrupts Database |
| Chartar.dat | ArchivedChartSummaryfileName: Added for the Prior Year Reporting feature | No | Corrupts Database - you will lose any summary prior year transactions for reporting. |
| ChgOrder.dat | Change Order "header" data. | No | Recreates Empty |
| (data will be lost) | |||
| CODetail.dat | Change Order detail | No | Recreates Empty |
| (data will be lost & data corruption) | |||
| Company.dat | Contains Company Name, Address, etc information entered through Maintain, Company Information. | No | Corrupts Database |
| Company.db | Tax forms file | Yes | Reinstall AATRIX tax forms to recover |
| Connco.dat | Creates when company is open. | Yes | Recreates Empty |
| Contacts.dat | Contains Contact information | No | Corrupts Database |
| Cosess.dat | Tracks how many users are in a company | Yes | Recreates Empty |
| Cost.dat | Contains information concerning Job Cost Codes. | No | Corrupts Database |
| Customer.dat | Contains Customer information | No | Corrupts Database |
| Defprfld.dat | Contains all of the default company payroll fields. | No | Corrupts Database |
| EarnSumm.dat | Contains earnings information for each employee. | No | Corrupts Database |
| Employee.dat | Contains Employee information | No | Corrupts Database |
| EmpPayinf.dat | Contains the pay rates defined for each employee. | No | Corrupts Database |
| Empprfld.dat | Contains the customized payroll fields specific to an employee. | No | Corrupts Database |
| Esprfld.dat | Contains the earnings for a payroll field. | No | Corrupts Database |
| ESWage.dat | Contains the employee summary hours and pay for each pay rate. | No | Corrupts Database |
| Eventlog.dat | Contains Customer\Employee\Vendor Event information. | Yes | Recreates Empty (Events will be lost) |
| Evntcls.dat | Created during the Year-End Wizard | Yes | Should not be present outside of the Year-End Wizard process |
| Forecast.dat | Contains Business Analysis information | Yes | Recreates Empty |
| Foredetl.dat | Contains Business Analysis information | Yes | Recreates Empty |
| General.dat | Contains Default Information entered through Maintain, Default Information. | No | Corrupts Database |
| GLCoat.dat | Used so FAS will know what Chart of Account numbers the company uses in Sage 50 | Yes | Recreates Empty (will have to relink the FAS company to the Sage 50 company) |
| Grpdata.dat | Contains a List of Report Groups. | Yes | Recreates Empty (report groups will be lost) |
| Invchain.dat | Helper file for inventory costing system. It is used with LIFO and FIFO costing methods. | No | Corrupts Database |
| Invcomp.dat | Contains Component List(s) for Assemblies. This file is used in part to help check for circular components when saving assemblies. | No | Corrupts Database |
| Invcost.dat | Helper file for inventory costing system. | No | Corrupts Database |
| Jobest.dat | Contains Job Estimate information. | No | Corrupts Database |
| Jrnlcls.dat | Created during the Year-End Wizard | Yes | Should not be present outside of the Year-End Wizard process |
| Jrnlhdr.dat | Contains one record for each transaction that the user enters. There is a one to many relationship between Header records and row records. Each header record can have any number of related rows. | No | Corrupts Database |
| Jrnlrow.dat | Contains the meat of the accounting system. It has one row for every financial event. Some rows serve to hold more than one type of information. There will be one row for every amount that the user entered PLUS there will be one or two rows for each system generated activity such as cost of goods sold, or below zero transactions. | No | Corrupts Database |
| Jrnlsno.dat | Contains information concerning Serialized Inventory | No | Corrupts Database |
| KMSKeys.xml | Key management for Sage Exchange | No | Corrupts Database |
| Lineitem.dat | Contains Inventory item information | No | Corrupts Database |
| NotAdMsg.dat | "Additional message" added to Notification Rules on the Setup Notification Rules window. | No | Recreates Empty (data will be lost) |
| Deleting individual Not*.dat files will corrupt the database--you may be unable to edit Notifications. | |||
| NotCdVal.dat | Notification Condition Value Record | No | Recreates Empty |
| (data will be lost) | |||
| NotMsg.dat | System generated notification text description of each Notification. | No | Recreates Empty |
| (data will be lost) | |||
| NotRecip.dat | Relates User assigned a Notification to the Notification in Notifica.dat. | No | Recreates Empty |
| (data will be lost) | |||
| NotRules.dat | Notification rules. | No | Recreates Empty |
| (data will be lost) | |||
| Notifica.dat | Notifications that have been made. | No | Recreates Empty |
| (data will be lost) | |||
| Olacct.dat | Online Banking OFX Imported Account Information | No | Corrupts Database |
| Oltrans.dat | Online Banking OFX Imported Bank Records | No | Corrupts Database |
| Paymethd.dat | Contains payment methods used in transactions. | No | Corrupts Database |
| PDSIDMap.dat | Contains Sage HR field mapping information |
No | Can have unpredictable results, such as duplicate data |
| (See note)* | |||
| PEPUsage.dat | Contains reportable usage data and environment statistics reported to Sage. | Yes | Recreates Empty |
| Periodar.dat | ArchivedPeriodInfofileName: Added for the Prior Year Reporting feature | No | Corrupts Database |
| you will lose any summary prior year transactions for reporting. | |||
| Permiss.dat | Contains User ID and Password information | No | Corrupts Database |
| Phase.dat | Contains Maintain Phase information. | No | Corrupts Database |
| Project.dat | Contains Maintain Job information. | No | Corrupts Database |
| QtyDisc.dat | Contains Quantity Discount information | No | Corrupts Database |
| RaiseHst.dat | Contains Employee Raise History information | No | Corrupts Database |
| Recon.dat | file holds information regarding reconsolidation of a Consolidated Company. | No | Corrupts Database |
| Recpttag.dat | Helper file for cash basis companies. Also, links up invoices and payments. | No | Corrupts Database |
| Recurex.dat | Contains information about yearend rollover recurring entries | No | Corrupts Database |
| Report.dat | Contains Predefined and Customized Financial Statement Report Formats. | Yes | Copy from Reports folder in data path. |
| Review.dat | Contains information on reviews. | Yes | Recreates Empty |
| Roles.dat | Holds information for default Roles in a Sage 50 Company | No | Corrupts Database |
| Rptdata.dat | Contains custom report formats that are not financial reports nor forms, and also import templates | Yes | Recreates Empty (Custom reports will be lost) |
| Rptfilts.dat | Used to save the report ranges in the filter tabs for reports. i.e non-contiguous customer ranges. | Yes | Recreates Empty |
| Rstydef.dat | Contains the report style defaults. | Yes | Recreates Empty |
| Rstyle.dat | Contains Predefined and Custom report style settings. | Yes | Recreates Empty |
| Statcode.dat | Available Notification Tracking status codes | Yes | Recreates Empty(Loses Tracking Status and History) |
| Stathist.dat | History of assignments of Notifications. | Yes | Recreates Empty(Loses Tracking Status and History) |
| Statnote.dat | Notification Tracking notes. | Yes | Recreates Empty(Loses Tracking Status and History) |
| Storetrx.d at | Contains Memorized Transactions (2005 and earlier) | Yes | Recreates Empty |
| Stxhdr.dat | Contains Memorized Transactions | Yes | Recreates Empty |
| Stxrow.dat | Contains Memorized Transactions | Yes | Recreates Empty |
| Syspref.dat | Holds company-specific preferences not associated with any particular Sage 50 user | Yes | Recreates Empty |
| Taxauth.dat | Contains Sales Tax Authority information | No | Corrupts Database |
| Taxcode.dat | Contains Sales Tax Code information. | No | Corrupts Database |
| Taxtable.dat | Contains Company specific (User-Maintained) payroll tax formulas. | Yes | Company Tax Tables will be lost |
| Template.dat | Contains Predefined and Customized Tasks screen Templates. | Yes | Recreates Empty |
| Ticket.dat | Contains Time Ticket and Expense Ticket information. | No | Corrupts Database |
| Unitmeas.dat | Contains Unit of Measure information | No | Corrupts Database |
| UPSinfo.dat | Helper file for UPS Integration | No | Corrupts Database |
| UPSship.dat | Helper file for UPS Integration | No | Corrupts Database |
| Userpref.dat | Contains User Preferences for Sage 50 | Yes | Recreates Empty and resets defaults |
| Userrole.dat | Holds information for User defined Roles in a Sage 50 Company | No | Corrupts Database |
| Vendins.dat | Contains vendor insurance information | No | Corrupts Database |
| Vendor.dat | Contains Vendor information. | No | Corrupts Database |
| Worktkt.dat | Contains information on created work tickets | No | Corrupts Database |
| Other files and Folders located in Company data folder | |||
| *.DDF | Data Definition files that 3rd party programs (such as Crystal Reports) and Pervasive need to read our data files. | Yes | Recreates the next time the company is opened |
| *.frm | Individual Form files. Each Custom form is its own separate file. | Yes | Custom Forms will have to be restored from a backup. |
| *.LCK | files that Btrieve creates to manage record locking. | Yes | No consequence |
| *.ptb | Sage 50 company backup file. Can be decompressed using extraction utility. | Yes | Backups will be lost |
| *.PTL | (Sage 50 Lock files) files that we create to manage record locks. | Yes | No consequence |
| *.PTR | Files that are created at the time of printing to manage print functions | Yes | Recreates with next print |
| *.RPT | Crystal Report that lists detailed information pulled from Maintain Customers. Includes sales and payment information. | Yes | Report will no longer be available |
| ~pvsw~.loc | Contains the computer name that is designated as the Actian (Pervasive) gateway server engine | Yes | Recreates the next time Sage 50 is opened |
| Datalog.txt | This is the log file that data verification writes to | Yes | Recreates with next DV test (DV history will be lost) |
| Details.ini | Contains company backup reminder information. | Yes | No consequence |
| Plan.dat | Linking file for customers record in Scopus | Yes | Recreates with next online update |
| Purge.log | Log file that Purge writes to: If turned on | Yes | Recreates with next Purge (Purge history will be lost) |
| PWASync.log | The log file that is created when PWA sync is done. When you sync and it pass or fails and you click to see the log, this is the file it is showing you. It Logs if the sync passes or if it fails and what the error is if it errors. file gets reset with every sync. | Yes | Recreates with next PWA Sync (Last Log will be lost) |
| Sync.pwp | Holds web transaction center transactions | Yes | Recreates with next PWA Sync |
| Services.pwp | Holds web transaction center transactions | Yes | Recreates with next PWA Sync |
| Version.txt | Text file that tells the data version. | No | Corrupts Database |
| Archives (file folder) | Contains Archived company data | Yes | Archives will be lost |
| Drafts (file folder) | Draft forms for Aatrix | Yes | Drafts will be lost |
| Histories (file folder) | Historic files for Aatrix | Yes | Historic forms will be lost |
| Letters (file folder) | Contains Mail Merge documents | Yes | Will need to recreate the Mail Merge documents |
| UPS (file folder) | UPS Label | Yes | Printed Labels will be lost |
| GenericAdvisor | PEP | Yes | Recreates |
| Files and Folders in the Datapath | |||
| *.DDF | Data Definition files that 3rd party programs (such as Crystal Reports) and Pervasive need to read our data files. | Yes | Run Repair of Sage 50 or reinstall latest service release to replace |
| *.LCK | Files that Btrieve creates to manage record locking. | Yes | No consequence |
| 1099info.dat | Contains Box Types, Descriptions, and lower limits for 1099 settings and defaults | Yes | Reinstall Sage 50 |
| Bilic.dat | Contains Business Intelligence licensing | No | Must reinstall/repair to replace |
| Connco.dat | At the company level, holds serial number information to enforce anti-piracy of software. | Yes | Recreates Empty |
| Conndp.dat | At the company level, holds serial number information to enforce anti-piracy of software. | Yes | Recreates Empty |
| Envsess.dat | Manages User Licenses in Sage 50 | Yes | Recreates Empty |
| Envuser.dat | Manages User Licenses in Sage 50 | Yes | Recreates Empty |
| Holiday.dat | Contains bank holidays | No | Must reinstall/repair to replace |
| Lgnsessn.dat | File used to hold login sessions | Yes | Recreates Empty |
| Msgtrigg.dat | Message Trigger Data file Name: Contains tracked data for PEP: | Yes | Can be deleted, but collected data is lost. |
| Obsret.dat | Contains service obsolescence and retirement information | Yes | Web services will not function until Sage 50 Repair is run to reinstall the file. |
| Olfi.dat | Contains Online Banking Import Wizard's List of Financial Institutions | Yes | Reinstall Sage 50 or the latest tax update, if applicable. |
| Options.dat | Contains Global Program Settings (I.e. Hide Accounting Periods, Change System Date, Define Internet Connection). Also holds Tax Registration and Product "value pack" Registration information. | Yes | Recreates Empty |
| Peachdat.loc | Locator file used by Sage 50 to designate where the proper Data Path is during installation. | Yes | Will need to reinstall to get the file back. |
| Rptdatai.dat | Contains all Predefined Reports for All Flavors. (No custom reports and no financial). | Yes | Will need to reinstall to get the file back. |
| Serial.dat | Holds serial number information to enforce anti-piracy of software. | Yes | Recreates Empty |
| Spstatus.dat | SmartPostingStatusfileName: Holds information about companies using SmartPosting: | No | Corrupts Database - hangs the SmartPosting service. |
| Status.dat | Contains status bar text messages. | Yes | Will need to reinstall to get the file back. |
| Taxinfo.dat | Helper file for Payroll tax tables. Contains Filing Statuses for each state, among other things. | Yes | Will need to reinstall to get the file back. |
| Taxrghst.dat | Tax registration for E-filing (versions 2013 and older) | Yes | Will need to reinstall and reregister Tax Service to get the file back. |
| Taxtable.dat | If located in the data path it contains Global payroll tax formulas. If located in the Company folder contains Company Payroll Tax Formulas. | Yes | Will need to reinstall to get the file back. |
| Forms (file folder) | Contains custom and standard forms | Yes | Will need to reinstall for standard forms and restore a backup for custom |
| Letters (file folder) | Contains zipped data needed to fill the company's letter folder. | Yes | Will need to reinstall to get the folder back |
| Reports (file folder) | Contains zipped data of DDF files, RPT files and the Report.dat files | Yes | Will need to reinstall to get the folder back. |
| Updates (file folder) | Contains Service Releases, Tax Updates and the oupaw.ini file | Yes | Will need to run the Check for Update option to repopulate |