Cross-section property is 0 (false) or 1 (true), if true, the object dissapears in cross-section mode.
Color property is a RRGGBB value.
Horizontile/Vertical is 0 (normal), 1 (horizontile only) or 2 (vertical only)
Slopes is something like "000 1:1"
  First is flag of if it's a slope
  Second is horizontile mirror flag
  Third is vertical mirror flag
  Next numbers are a ratio of horizontile to vertical tiles

---EntranceTypes.txt---
Types of entrances used by screen exits
"Number","Description"

---LevelList.txt---
Indexes of all levels.
"Index","Description"

---LevelOffsets.txt---
Offsets of levels.
"Offset","Level"

---SpriteData.txt---
Information about sprites.
"Number","Description","Color"

---O5Data.txt---
Information about five byte objects.
"Number","Description","Slopes",Cross-section,"Color"

---O4Data.txt---
Information about four byte objects.
"Number","Description",Horizontile/Vertical,"Slopes",Cross-section,"Color"

---O4SData.txt---
Information about four byte special objects.
"Number","Description",width,height,cross-section,"Color"