Intuit HelpIntuit

ProSeries file types

This article briefly explains the most common file extensions used by ProSeries to store information.

ProSeries client file types:

Form Type	General ProSeries File Extension	Example using TY20	Name of HomeBase view	Usable by
1040	YYi	23i	Form 1040: Individual	Basic/Professional
1040NR	YYf	23f	Form 1040NR: Nonresident	Professional
1041	YYe	23e	Form 1041: Estates/Trusts	Professional
1065	YYp	23p	Form 1065: Partnerships	Professional
1120	YYc	23c	Form 1120: Corporations	Professional
1120S	YYs	23s	Form 1120S: S Corps	Professional
706	YYr	23r	Form 706: Estates	Professional
709	YYg	23g	Form 709: Gifts	Professional
990	YYn	23n	Form 990: Tax-Exempt Orgs	Professional
ORG	YYo	23o	Organizer for 1040	Professional

ProSeries File Extension	Type	More Information	Default Directory
.cache file.	Cache	Starting in ProSeries 2020 and newer Cache files are snapshots of the client file that are used to display and maintain the HomeBase with up to date information.	YYData
jn1	Journal	Contains location of client file for network installations only in ProSeries 2019 and prior.	YYData
tmp	Temporary	Contains information caused by software terminating unexpectedly.	YYData
lck	Lock	Stores access permissions to a file or feature.	YYData; Common
cdx, dbf, ddf, lst, mbf	HomeBase	Stores data for HomeBase views and their corresponding fields.	HomeBase
pmd	ProSeries Basic HomeBase	Stores data for the ProSeries Basic HomeBase views and their corresponding fields (from tax year 2015 to 2020)	YYData (Ex. 18Data)
blb, dat, idx	DMS	Stores data including folder structure, client information, and client files.	Open DMS and view Current Database Path
3us, 3uc, 3up	FAM	Fixed Asset Manager import files.
inv	Invoice	Client invoice files.	Common
inv	Update	Contains module versions for update purposes.	Updates
dggn, hefs	Forms	Contains module versions for update purposes.	Forms
ltr, rtf	Letters	Contains letters and custom letters.	Common
lyt	Modules	Contains module code references for updating and installing.	BasWinYY; ProWinYY; ProSeriesProNetYY_AutoDL20YY_Core

ProSeries BasicWorkflow Add-On Document Management System

Ask questions, get answers, and join our large community of Intuit Accountants users.