A ptp file extension is related to the Act! software from Sage. A ptp file stores modem sync data.
There are 4 other file types using
the PTP file extension!
.ptp - Docklight project
.ptp - Primo Computer Emulator tape image
.ptp - ToolBook Instructor Assistant Book data
.ptp - Pro Tools preferences
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What is ptp file? How to open ptp files?
The ptp file extension is associated with ACT!, a well known contact and customer manager from Sage available for Microsoft SQL Server and .NET platform.
The ptp file contains modem sync data.
The default software associated to open ptp file:

Act! 
Company or developer:
The Sage Group plc
Act! is contact and customer manager that helps you organize contact information, manage daily responsibilities, and communicate more effectively. The latest version is 17.
Help how to open:
This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.
How to convert:
As far as we know, this .ptp file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.
List of software applications associated to the .ptp file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open ptp file, edit ptp file, convert ptp file, view ptp file, play ptp file etc. (if exist software for corresponding action in File-Extensions.org's database).
Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting ptp files.
Settings file type for software that use ptp file - ACT! modem sync data
Programs supporting the exension ptp on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Act! for settings ptp file action.
Unspecified and all other actions for computer programs working with ptp file - ACT! modem sync data
Click on the software link for more information about Act!. Act! uses ptp file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).
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