You're here because you have a file that has a file extension ending in .tfa. Files with the file extension .tfa can only be launched by certain applications. It's possible that .tfa files are data files rather than documents or media, which means they're not meant to be viewed at all.

A treeSoft CashFlow Analysis data file can be created using an application that belongs to the Real Estate Analysis Desktop software products from treeSoft. This program can also be used to open and modify the content of a treeSoft CashFlow Analysis data file. This program is called the treeSoft Cashflow Analysis application, and this software was developed to provide users with a set of functionalities useful for property valuation, cashflow projections and other financial data related to the real estate investments of a user. When a user starts the treeSoft Cashflow Analysis software for the first time, the GUI (Graphical User Interface) of the program presents to the user a set of features that can be accessed by the user to enter financial details associated to his or her real estate property investments. These property details and financial content can then be processed by the other functionalities available in the treeSoft Cashflow Analysis program. The user can then save the document as a treeSoft CashFlow Analysis data file. The software implements text formatting and XML-based specifications into the content of these treeSoft CashFlow Analysis data files. These encoding standards are used to store these treeSoft CashFlow Analysis data files in the TFA file format. These TFA files are affixed with the .tfa extension, and the content of these treeSoft CashFlow Analysis data files may include text, numerical and statistical formulas for computing projections and other mathematical processes associated to the real estate property investments of the user.

Launch a .tfa file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that's meant to open your .tfa file will open it. It's possible you may need to download or purchase the correct application. It's also possible that you have the correct application on your PC, but .tfa files aren't yet associated with it. In this case, when you try to open a .tfa file, you can tell Windows which application is the correct one for that file. From then on, opening a  .tfa file will open the correct application. Click here to fix .tfa file association errors

Be careful not to rename the extension on .tfa files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another.

A file extension is the set of three or four characters at the end of a filename; in this case, .tfa. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.