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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File Extension


Supported Extensions


Name Extension
OpenDocument Spreadsheet .ods
FileType_en_US_default .stc
OpenDocument Spreadsheet Template .ots
OpenOffice.org 1.1 Spreadsheet .sxc
Microsoft Office Excel Template .xlt
Microsoft Office Excel 97-2003 Worksheet .xls
Microsoft Office Excel Binary Worksheet .xlsb
Microsoft Office Excel Macro-Enabled Worksheet .xlsm
Microsoft Office Excel Macro-Enabled Template .xltm
Microsoft Office Excel Template .xltx
Microsoft Office Excel Worksheet .xlsx
OpenDocument Tabellendokument .fods
Microsoft Office Excel Comma Separated Values File .csv
Microsoft Visual FoxPro Table .dbf
Microsoft Works Spreadsheet .wks
1-2-3 Worksheet .wk1
OpenDocument Spreadsheet .123
Microsoft Office Excel SLK Data Import Format .slk
Microsoft Office Excel Workspace .xlw
DV Movie .dif
XML Document .xml
Microsoft Works Spreadsheet .xlr
HTML Document .html
Text Document .txt
HTML Document .htm
Rich Text Format .rtf
QuickBooks Import/Export File .iif
Microsoft Office Excel 97-2003 Worksheet .xlb
dat .dat
Adobe Acrobat Document .pdf
Microsoft Office Word 97 - 2003 Document .doc
Paradox Table .db
3D Rad Project .3dr
XPS Document .xps
Microsoft Excel XML Worksheet .xlxml
Macromedia Flash Paper .mfp
XML Schema File .xsd
Microsoft Excel Chart .xlc
Microsoft Office Excel 4.0 Macro .xlm
Bitmap Image .bmp
Name Extension
Compiled Resource Script .res
Microsoft Office Excel Add-In .xla
Microsoft Office Excel Backup File .xlk
Microsoft Office Excel XLL Add-In .xll
OpenDocument Text .odt
Microsoft Excel OLAP Query File .oqy
Microsoft Excel OLE DB Query files .rqy
Microsoft Excel HTML Document .xlshtml
Microsoft Excel HTML Template .xlthtml
Dialogic VOX file .xba
Dialogic VOX file .tsv
Microsoft Office Access MDE Database .mde
Text Document .dic
Compressed (zipped) Folder .zip
Text Document .log
Active Server Page .asp
1-2-3 Worksheet .wk4
Microsoft Money backup file .mbf
Quicken Import File .qif
Business-in-a-Box Document .btd
Dialogic VOX file .bau
excel .xls_
Raintree Image Book .imb
CodeWarrior GTD File .file
.qxf
STARFAX ドキュメント .sfp
StuffIt Encoded File .pf
MyWinLocker Protected File .xlsbenx
MyWinLocker Protected File .xlsenx
MyWinLocker Protected File .xlsmenx
MyWinLocker Protected File .xlsxenx
StarOffice 5.0 表計算ドキュメント .sdc
StarOffice 5.0 テンプレート .vor
OpenDocument Text Template .ott
WinRAR archive .gz
Microsoft Office Word Document .docx
Microsoft Word Backup Document .wbk
Microsoft Works Database .wdb
Microsoft SQL Server Query File .sql

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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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