Systems and methods are provided for creating tables using auto-generated templates. Reports including lines of text to be extracted into tables are received. An auto define input is received to auto-generate the tables corresponding to the reports. Groups of lines are identified from among the lines of text in the reports. A detail group and relevant groups are selected and identified from among the groups of lines. A final detail group is created by merging the detail group with at least a portion of the relevant groups. Append groups are identified from among the groups of lines not included in the final detail group. Templates corresponding to the final detail group and the append groups are generated. Text is extracted from the reports based on the templates. Tables are generated using the text extracted from the reports, by assigning the text from the text fragments to entries in the tables.