Documents and other files can be stored directly in ModusDoc database or the database can store the hyperlinks to these documents/files. ModusDoc data cataloger allows creating an unlimited number of databases. Each database can have individual configuration: have hidden or rearranged columns, added new ones of various types (symbolic, textual, numeric, logical, date, date and time). Each ModusDoc database consists of a GROUPS and a RECORDS table. Groups are presented on two tabs, Index (linear structure) and Tree (hierarchical structure); the program generates the tree automatically! The filtering (selection) tools located immediately above the group tabs and above each field of the records table allows locating required data quickly and conveniently. A group can contain documents and other files (both embedded and bound, as hyperlinks), shortcuts to the applications that created these documents, hyperlinks to Internet resources related to documents and programs presented in the group, as well as folder shortcuts and notes.