Opening TDB files

Did your computer fail to open a TDB file? We explain what TDB files are and recommend software that we know can open or convert your TDB files.

What is a TDB file?

The TDB file format is most commonly associated with the ACT! and Thumbs contact management system database applications. These TDB files contain the settings that determine how the contact management software runs and stores the information that is saved for each contact.

The .tdb file extension is also used for the database files that are created by the SlamDB database application and files that are created by the eBay Turbo Lister. The eBay Turbo Lister allows eBay sellers to upload their listings more quickly to the eBay website. The TDB files that are created by this software contain backup files for the eBay Turbo Lister.

Software that will open, convert or fix TDB files

WinRAR Download Now
Mein Geld Download Now
QuickBooks Pro Timer Download Now
ThumbsPlus Download Now
Foxit Reader Download Now


Program has been verified to work with TDB files.
Every day, thousands of users submit information to us about which programs they use to open certain types of files. Our users primarily use the above programs to open TDB files.

Try a universal file viewer

In addition to the products listed above, I would suggest that you try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and very likely yours too » Free Download.

By Prof. Jones (The File Expert)
Chief Content Editor and File Expert
Suggestions for this page? Mail me.