Database file for ACT! contact management software
The TDB file extension is primarily used on database files created with ACT! contact management software developed by Sage Group. Those files are relational databases that store the contact management software’s settings in addition to information about each contact.
The TDB file extension is also used with Cerious Software’s ThumbsPlus image organization application, with TACT database files and with backup files created by the professional eBay listings tool Turbo Lister.
Learn more about TDB files:
View questions and answers about working with contact management software.
View questions and answers about working with CRM software.