>> ACT file

ACT file format description

Many people share .act files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .act file can be edited, converted or printed with. On this page, we try to provide assistance for handling .act files.

3 filename extension(s) found in our database.

.act - Microsoft Office Assistant Actor

The ACT other files are related to Microsoft Office. ACT file is a Microsoft Office Assistant Actor file.

Microsoft Office
Other files
- / -
Microsoft Office Assistant Actor related extensions:
Terragen License Key
Terragen Plugin
PCSX2 External Patch
Cubase VST Plugin
Panasonic KTS Application
MobaXterm Packaged Plugins

.act - OptionVue Portfolio Manager Account Data

The ACT data files are related to OptionVue. ACT file is an OptionVue Portfolio Manager Account Data. OptionVue is an options trading and analysis software. LGN file contains the text entered in the notes field of the Transaction Log. ACT file contains the basics about your account: Interest rates, brokerage choice, personal information, etc..

Data files
- / -
OptionVue Portfolio Manager Account Data related extensions:
OptionVue Portfolio Manager LGN Backup
OptionVue Portfolio Manager Log Notes
OptionVue Portfolio Manager Parcel Data
OptionVue Portfolio Manager Positions Data

.act - Adobe Photoshop Color Table

The ACT data files are related to Adobe Photoshop. ACT file is an Adobe Photoshop Color Table. Adobe Photoshop is a graphics editor published by Adobe Systems. It is the market leader for commercial image manipulation.

Adobe Photoshop
Data files
- / -
Adobe Photoshop Color Table related extensions:
Business Integrator Database
Business Integrator Upgrade License Data
Ad-Aware Definitions Data
Ad-Aware Quarantined File
Btrieve Database
Adlib Express OCR Processing Information

Naturally, other applications may also use the .act file extension. Even harmful programs can create .act files. Be especially cautious with .act files coming from an unknown source!

Can't open a .act file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .act file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

ac, acf, acg, ach, acr, adt, aft, ast, at, atc, avt, axt, cat, ct, qct

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

WCT Reader Index File
AdTech Perfectfax Document
TIFF Contone File
Autodesk AutoCAD Tool Catalog
Cheat Engine Cheat Table

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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If you have useful information about the .act file format, then write to us!

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