# Name Conventions and File Extensions¶

The most important files of SOFiSTiK software are the input files (.SOFISTIK and .DAT) and the database .CDB. The other types of files are:

Extension

Description

.EXE

Execution program (MS-DOS/Windows)

.DLL

Shared dynamic link library (Windows)

.CMD

Batch file

.ERR

Error file of a program module containing all error messages, input records and output text in German and English

.HTM

Latest changes file. These files contain the changes to each program since the last manual, as well as the corrected errors.

.PDF

Adobe portable document format (Manuals)

.CHM

Compressed HTML help files (cdbase.chm Database Help Manual)

.DEF

Definition file for parameters

.INI

Parameter file for design codes

The following files result from an analysis:

Extension

Description

.DAT

Input file (not mandatory)

.DWG

Input file for plan from SOFiPLUS, in which the analysis system and the load are entered

.SOFISTIK

Project files of the SSD (SOFiSTiK Structural Desktop)

.SOFISTIX

Template file of the SSD (SOFiSTiK Structural Desktop)

.GRA

Input file from WINGRAF generated

.RESULTS

Input file from Result Viewer generated

.LST

Output file of the individual programs

.ERG

Output file of the entire analysis

.PRT

Protocol file of the entire analysis

.PLB

Result file with text and graphics

.CDB

Database, should not normally be deleted.

.CDE

Eigenforms of dynamic analysis

.$DN As well as other files with $ (Windows)

.ZDN

A letter and number. Restart files (e.g. stiffness matrix) may be deleted; however, these files may have to be regenerated later, which can demand significant computing time.

.$0N As well as other files with $ (Windows)

.Z0N

Numbers. Temporary work files can always be deleted. Usually these files are deleted by the program itself if it finishes properly. Files with wild number combinations in their names are auxiliary files of the operating system, which can no longer be deleted due to a warm start of the computer.

.\$

Auxiliary files under Windows which can be deleted.

.#NN

Auxiliary files under Windows which can be deleted.

.###

These are error-log files under Windows which can be deleted.

.SDB

Shadow database: This file is usually deleted by closing of all involved programs.