4.6.7 first pr (#726)

packages/web/common/file/read/rawText.ts

@@ -0,0 +1,22 @@
+/**
+ * read file raw text
+ */
+export const readFileRawText = (file: File) => {
+  return new Promise<{ rawText: string }>((resolve, reject) => {
+    try {
+      const reader = new FileReader();
+      reader.onload = () => {
+        resolve({
+          rawText: reader.result as string
+        });
+      };
+      reader.onerror = (err) => {
+        console.log('error txt read:', err);
+        reject('Read file error');
+      };
+      reader.readAsText(file);
+    } catch (error) {
+      reject(error);
+    }
+  });
+};