endfloat.sty produces these two auxiliary files. From Section 3.2 of its documentation: > Loading it will have LTEX produce two extra files with .ttt and .fff extensions (for tables and figures, respectively).
@@ -141,3 +141,7 @@ pythontex-files-*/
# WinEdt
*.bak
*.sav
+
+# endfloat
+*.ttt
+*.fff