diff --git a/excel2json.d.ts b/excel2json.d.ts
new file mode 100644
index 0000000..c1408ca
--- /dev/null
+++ b/excel2json.d.ts
@@ -0,0 +1,12 @@
+interface Excel2JsonProps {
+  mappings?: Array<any>;
+  saveToOutput?: boolean;
+  outputPath?: string;
+  outputName?: string;
+  sheetName?: string;
+  inputFile?: string;
+  mapperFile?: string;
+  encoding?: string;
+}
+
+declare function excel2json(props: Excel2JsonProps);
diff --git a/package.json b/package.json
index deae321..89134c9 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
-  "name": "excel2json",
+  "name": "excel2json-xlsx",
   "version": "1.0.0",
-  "description": "Excel to json",
+  "description": "Excel to JSON, able to export JSON from Excel (xlsx)",
   "repository": {
     "url": "https://github.com/CUBETIQ/excel2json.git"
   },