diff --git a/tools/foundry_convert_tables.lua b/tools/foundry_convert_tables.lua
new file mode 100644
index 0000000..d692c7b
--- /dev/null
+++ b/tools/foundry_convert_tables.lua
@@ -0,0 +1,24 @@
+
+package.path = package.path .. ";luajson/?.lua"
+local JSON = require"json"
+
+local path_in  = "../tables/spider.json"
+local f1 = io.open(path_in, "r")
+local strjson = f1:read("*a")
+f1:close()
+local tabData = JSON.decode(strjson)
+
+local results = {}
+for idx, row in pairs(tabData.rows) do 
+  local min = row.range[1]
+  local max = row.range[2]
+  local field = tostring(2).."-"..tostring(max)
+  --results[field] = "<b>"..row.name.."</b>:"..row.description
+  results[field] = row.description
+  print(field, row.name)
+end
+
+local entries = JSON.encode(results)
+print()
+print()
+print(entries)
\ No newline at end of file