Welcome to the PC Pitstop File Extension Library, the internet's most complete and comprehensive source for file extension information. Over the years PC Pitstop has developed numerous free scans that diagnose various PC performance issues. Over 200 million scans that have been run all over the world contribute to our file extension libraries.

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Search For File Extensions

File Extension


Supported Extensions


Name Extension
ACHART File Type .ach
Chat File Type .cht
NewsManager File .ent
Quote Board File Type .eqb
Scan File Type .esk
Symbol Search File Type .ess
Time and Quotes File Type .etq
Time and Sales File Type .ets
IntegratedTrading File Type .itf
Layout File Type .lay
Detail Trace .dtl
Market Depth Type .emd;nl2
Market Profile File Type .emp
OPTIONS File Type .opw
PORTFOLIO File Type .por
QUOTE File Type .quo
SUMMARY File Type .sum
TICKER File Type .tkr
TICKER File Type .tkra
Name Extension
TICKER File Type .tkrn
TICKER File Type .tkrq
String Table .str
LEADERS File Type .ldr
Order Entry Ticket Type .oet
NewsManager Preview File .ens
Report File Type .rpt2
OptionsPlus File .op
DAZ Script (binary) .dsb
CHART File Type .ch
Account Manager File Type .acm
Trade Manager File Type .trm
Forex Window File Type .fxw
Page File Type .pg
Forward/Yield Curve File Type .fyc
FileType_en_US_default .stc
EFS Library File .efslib
EFS File .efs
Forex Board File Type .efb

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Introducing Driver Matic. In May 2007, PC Pitstop announced a revolutionary technology called Driver Matic. Driver Matic allows the installation of a driver with the click of a button. Prior to Driver Matic, all drivers had to be installed differently and required significant user involvement. Now with Driver Matic, a PC can have up to date drivers automatically. Driver Matic has been integrated into both PC Matic and Driver Alert 2.0. Driver Matic finally has made it simple and easy to keep your drivers up to date. Only at PC Pitstop.

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Tips from the PitCrew

Tips from the Pit Crew

If a hardware device isn't functioning properly, or if a program or game that you're installing states that it requires newer drivers, a driver update will be in order.

Also, with many wireless adapters it is important to stay current as updates often contain security fixes. A driver update may also improve stability and performance, or may fix issues with games, programs and power management.

New drivers can unlock additional features for a device that may not have been available before. If you receive notification from a program or a manufacturer that a newer driver is available, it would be a good idea to check the release notes and see what’s different than the driver you’re already using.

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