#64 Excel xml and html data.preview patch changes & docs update

Author: RandomFractals

README.md

@@ -138,8 +138,7 @@ Data File Extension(s) | File Type | Data Parsing Library/Method Used | Data For
 `.ini` | text | [node-properties](https://github.com/gagle/node-properties)/[`properties.parse()`](https://github.com/gagle/node-properties#ini) | https://en.wikipedia.org/wiki/INI_file
 `.yml` `.yaml` | text | [js-yaml](https://github.com/nodeca/js-yaml)/[`yaml.load()`](https://github.com/nodeca/js-yaml#load-string---options-) | https://yaml.org/
 `.csv` `.tsv` `.txt` `.tab` | text | [perspective](https://github.com/finos/perspective/)/[`perspectiveViewer.load(text)`](https://github.com/finos/perspective/tree/master/packages/perspective-viewer#module_perspective-viewer..PerspectiveViewer+load) | https://en.wikipedia.org/wiki/Comma-separated_values https://en.wikipedia.org/wiki/Tab-separated_values
-`.xml` `.html` | text | [js-xlsx](https://github.com/SheetJS/js-xlsx)/[`XLSX.read(string)`](https://github.com/SheetJS/js-xlsx#parsing-functions) | See https://github.com/SheetJS/js-xlsx#file-formats for more info on text `Excel` file formats
-`.dif` `.ods` `.slk` `.xls` `.xlsb` `.xlsx` `.xlsm` | binary | [js-xlsx](https://github.com/SheetJS/js-xlsx)/[`XLSX.read(buffer)`](https://github.com/SheetJS/js-xlsx#parsing-functions) | See https://github.com/SheetJS/js-xlsx#file-formats for more info on binary `Excel` file formats
+`.dif` `.ods` `.slk` `.xls` `.xlsb` `.xlsx` `.xlsm` `.xml` `.html` | binary/text | [js-xlsx](https://github.com/SheetJS/js-xlsx)/[`XLSX.read()`](https://github.com/SheetJS/js-xlsx#parsing-functions) | See https://github.com/SheetJS/js-xlsx#file-formats for more info on `Excel` file formats
 
 ![Data Preview Data](https://github.com/RandomFractals/vscode-data-preview/blob/master/images/vscode-data-preview-data.png?raw=true 
 "Data Preview Data")

package-lock.json

@@ -2,7 +2,7 @@
   "name": "vscode-data-preview",
   "displayName": "Data Preview",
   "description": "Data Preview 🈸 extension for viewing 🔎 slicing 🔪 dicing 🎲 & charting 📊 large JSON array/config, YAML, Apache Arrow, Avro & Excel data files",
-  "version": "1.20.0",
+  "version": "1.20.1",
   "icon": "images/data-preview.png",
   "publisher": "RandomFractalsInc",
   "author": "Taras Novak",

package.json

@@ -480,11 +480,9 @@ export class DataPreview {
       case '.xlsb':
       case '.xlsx':
       case '.xlsm':
-        data = this.getBinaryExcelData(dataFilePath);
-        break;
       case '.xml':
-      case '.html':
-        data = this.getTextExcelData(dataFilePath);
+      case '.html':        
+        data = this.getBinaryExcelData(dataFilePath);
         break;
       case '.env':
         data = jsonUtils.configToPropertyArray(fs.readFileSync(dataFilePath, 'utf8'));