diff --git a/lib/DataHarmonizer.js b/lib/DataHarmonizer.js
index c944d29d..a7b6b34a 100644
--- a/lib/DataHarmonizer.js
+++ b/lib/DataHarmonizer.js
@@ -372,10 +372,13 @@ class DataHarmonizer {
    *
    * @param {String} file_name: File in templates/[current schema]/ to load.
    */
-  async openFile(file_name) {
+  async openFile(file) {
     try {
-      let contentBuffer = await readFileAsync(file_name);
-      this.loadSpreadsheetData(contentBuffer);
+      let contentBuffer = await readFileAsync(file);
+      if (file.type === 'application/json') {
+        console.log(JSON.parse(contentBuffer));
+        this.loadDataObjects(JSON.parse(contentBuffer));
+      } else this.loadSpreadsheetData(contentBuffer);
     } catch (err) {
       console.log(err);
     }
@@ -1892,7 +1895,6 @@ class DataHarmonizer {
     for (let row in matrix) {
       // NOTE: row is string!  Adding offsets requires parseInt(row)
       const hotRowPtr = parseInt(row); // + rowOffset;
-      console.log('row', row, hotRowPtr);
       const hotRowBinCol = parseInt(col) + binOffset;
       const hotRowNextCol = parseInt(col) + 1;
       const value = matrix[row][col];
diff --git a/lib/Toolbar.js b/lib/Toolbar.js
index 8135ead6..9d3c835a 100644
--- a/lib/Toolbar.js
+++ b/lib/Toolbar.js
@@ -76,7 +76,7 @@ class Toolbar {
     $fileInput.on('change', function () {
       const file = $fileInput[0].files[0];
       const ext = file.name.split('.').pop();
-      const acceptedExts = ['xlsx', 'xls', 'tsv', 'csv'];
+      const acceptedExts = ['xlsx', 'xls', 'tsv', 'csv', 'json'];
       if (!acceptedExts.includes(ext)) {
         const errMsg = `Only ${acceptedExts.join(', ')} files are supported`;
         $('#open-err-msg').text(errMsg);
@@ -107,7 +107,7 @@ class Toolbar {
         const baseName = $('#base-name-save-as-input').val();
         const ext = $('#file-ext-save-as-select').val();
         if (ext == 'json') {
-          let data = dh.getDataObjects();
+          let data = dh.getDataObjects(false);
           dh.runBehindLoadingScreen(exportJsonFile, [data, baseName, ext]);
         } else {
           let matrix = [...dh.getFlatHeaders(), ...dh.getTrimmedData()];
diff --git a/lib/toolbar.html b/lib/toolbar.html
index 4c198546..197b28ea 100644
--- a/lib/toolbar.html
+++ b/lib/toolbar.html
@@ -26,7 +26,7 @@
         >
         <input
           type="file"
-          accept=".xlsx,.xls,.tsv,.csv"
+          accept=".xlsx,.xls,.tsv,.csv,.json"
           class="form-control-file"
           id="open-file-input"
         />