diff --git a/src/core/Utils.mjs b/src/core/Utils.mjs
index eae86374..c622ed62 100755
--- a/src/core/Utils.mjs
+++ b/src/core/Utils.mjs
@@ -1288,8 +1288,8 @@ class Utils {
      * @param {string} token
      * @returns {string}
      */
-    static charRep(token) {
-        return {
+    static charRep(token, data="Auto") {
+        const charMap = {
             "Space":         " ",
             "Percent":       "%",
             "Comma":         ",",
@@ -1304,7 +1304,11 @@ class Utils {
             "\\x":           "\\x",
             "Nothing (separate chars)": "",
             "None":          "",
-        }[token];
+        };
+        if(token === "Auto" && data !== "Auto") {
+            return Object.values(charMap).find(char => data.includes(char));
+        }
+        return charMap[token];
     }
 
 
diff --git a/src/core/lib/Decimal.mjs b/src/core/lib/Decimal.mjs
index a140fd4e..a23a52b2 100644
--- a/src/core/lib/Decimal.mjs
+++ b/src/core/lib/Decimal.mjs
@@ -24,7 +24,7 @@ import Utils from "../Utils.mjs";
  * fromDecimal("10:20:30", "Colon");
  */
 export function fromDecimal(data, delim="Auto") {
-    delim = Utils.charRep(delim);
+    delim = Utils.charRep(delim, data);
     const output = [];
     let byteStr = data.split(delim);
     if (byteStr[byteStr.length-1] === "")