fix: Add support for xls,json,tsv file types in file widget (#23159)

Fixes #17946

This PR adds support for parsing XLS,XLSX, TSV, JSON and CSV files in
file widget v2.

#### Type of change
- New feature (non-breaking change which adds functionality)
- This change requires a documentation update

## Testing
>
#### How Has This Been Tested?
- [x] Manual
- [x] Cypress
>

### Test Plan
https://github.com/appsmithorg/TestSmith/issues/2411

#### Test Plan
> Import following file types to test if the feature works fine.
1. Import xls, xlsx, json, tsv, csv file.
2. Import a large file > 1 MB, > 5 MB to test the feature.
3. Import file types of text,binary and base64 to test existing
functionality since the whole importing code has been refactored.


## Checklist:
#### Dev activity
- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my own code
- [x] I have commented my code, particularly in hard-to-understand areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [x] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [ ] PR is being merged under a feature flag

app/client/cypress/e2e/Regression/ClientSide/Widgets/Filepicker/FilePickerV2_CSV_spec.js

@@ -2,25 +2,28 @@ const commonlocators = require("../../../../../locators/commonlocators.json");
 const dsl = require("../../../../../fixtures/filePickerTableDSL.json");
 
 const widgetName = "filepickerwidgetv2";
-const ARRAY_CSV_HELPER_TEXT = `All non csv filetypes will have an empty value`;
+const ARRAY_CSV_HELPER_TEXT = `All non CSV, XLS(X), JSON or TSV filetypes will have an empty value`;
+const ObjectsRegistry =
+  require("../../../../../support/Objects/Registry").ObjectsRegistry;
+let propPane = ObjectsRegistry.PropertyPane;
 
 describe("File picker widget v2", () => {
   before(() => {
     cy.addDsl(dsl);
   });
 
-  it("1. Parse CSV data to table Widget", () => {
+  it("1. Parse CSV,XLS,JSON,TSV,Binary,Text and Base64 file data to table Widget", () => {
     cy.openPropertyPane(widgetName);
     cy.get(
       `.t--property-control-dataformat ${commonlocators.helperText}`,
     ).should("not.exist");
     cy.selectDropdownValue(
       commonlocators.filePickerDataFormat,
-      "Array (CSVs only)",
+      "Array of Objects (CSV, XLS(X), JSON, TSV)",
     );
     cy.get(commonlocators.filePickerDataFormat)
       .last()
-      .should("have.text", "Array (CSVs only)");
+      .should("have.text", "Array of Objects (CSV, XLS(X), JSON, TSV)");
     cy.get(
       `.t--property-control-dataformat ${commonlocators.helperText}`,
     ).should("exist");
@@ -32,20 +35,113 @@ describe("File picker widget v2", () => {
       .selectFile("cypress/fixtures/Test_csv.csv", {
         force: true,
       });
+
+    // wait for file to get uploaded
     cy.wait(3000);
 
     cy.readTableV2dataPublish("1", "1").then((tabData) => {
       const tabValue = tabData;
       expect(tabValue).to.be.equal("Black");
-      cy.log("the value is" + tabValue);
     });
     cy.readTableV2dataPublish("1", "2").then((tabData) => {
       const tabValue = tabData;
       expect(tabValue).to.be.equal("1000");
-      cy.log("the value is" + tabValue);
     });
     cy.get(
       `.t--widget-tablewidgetv2 .tbody .td[data-rowindex=${1}][data-colindex=${3}] input`,
     ).should("not.be.checked");
+    cy.get(".uppy-Dashboard-Item-action--remove").click({ force: true });
+
+    // Test for XLSX file
+    cy.get(commonlocators.filePickerInput)
+      .first()
+      .selectFile("cypress/fixtures/TestSpreadsheet.xlsx", { force: true });
+
+    // wait for file to get uploaded
+    cy.wait(3000);
+
+    cy.readTableV2dataPublish("0", "0").then((tabData) => {
+      expect(tabData).to.be.equal("Sheet1");
+    });
+    cy.readTableV2dataPublish("0", "1").then((tabData) => {
+      expect(tabData).contains("Column A");
+    });
+    cy.get(".uppy-Dashboard-Item-action--remove").click({ force: true });
+
+    // Test for XLS file
+    cy.get(commonlocators.filePickerInput)
+      .first()
+      .selectFile("cypress/fixtures/SampleXLS.xls", { force: true });
+
+    // wait for file to get uploaded
+    cy.wait(3000);
+
+    cy.readTableV2dataPublish("0", "0").then((tabData) => {
+      expect(tabData).to.be.equal("Sheet1");
+    });
+    cy.readTableV2dataPublish("0", "1").then((tabData) => {
+      expect(tabData).contains("Dulce");
+    });
+    cy.get(".uppy-Dashboard-Item-action--remove").click({ force: true });
+
+    // Test for JSON File
+    cy.get(commonlocators.filePickerInput)
+      .first()
+      .selectFile("cypress/fixtures/largeJSONData.json", { force: true });
+
+    // wait for file to get uploaded
+    cy.wait(3000);
+
+    cy.readTableV2dataPublish("0", "2").then((tabData) => {
+      expect(tabData).to.contain("sunt aut facere");
+    });
+    cy.get(".uppy-Dashboard-Item-action--remove").click({ force: true });
+
+    // Test for TSV File
+    cy.get(commonlocators.filePickerInput)
+      .first()
+      .selectFile("cypress/fixtures/Sample.tsv", { force: true });
+
+    // wait for file to get uploaded
+    cy.wait(3000);
+
+    cy.readTableV2dataPublish("0", "0").then((tabData) => {
+      expect(tabData).to.be.equal("CONST");
+    });
+    cy.get(".uppy-Dashboard-Item-action--remove").click({ force: true });
+
+    // Drag and drop a text widget for binding file data
+    cy.dragAndDropToCanvas("textwidget", { x: 100, y: 100 });
+    cy.openPropertyPane("textwidget");
+    propPane.UpdatePropertyFieldValue("Text", `{{FilePicker1.files[0].data}}`);
+
+    // Test for Base64
+    cy.openPropertyPane(widgetName);
+    cy.selectDropdownValue(commonlocators.filePickerDataFormat, "Base64");
+    cy.get(commonlocators.filePickerInput)
+      .first()
+      .selectFile("cypress/fixtures/testdata.json", { force: true });
+    cy.get(".t--widget-textwidget").should(
+      "contain",
+      "data:application/json;base64",
+    );
+    cy.get(".uppy-Dashboard-Item-action--remove").click({ force: true });
+
+    // Test for Text file
+    cy.selectDropdownValue(commonlocators.filePickerDataFormat, "Text");
+    cy.get(commonlocators.filePickerInput)
+      .first()
+      .selectFile("cypress/fixtures/testdata.json", { force: true });
+    cy.get(".t--widget-textwidget").should("contain", "baseUrl");
+    cy.get(".uppy-Dashboard-Item-action--remove").click({ force: true });
+    cy.wait(3000);
+    cy.get(".t--widget-textwidget").should("have.text", "");
+
+    cy.selectDropdownValue(commonlocators.filePickerDataFormat, "Binary");
+    cy.get(commonlocators.filePickerInput)
+      .first()
+      .selectFile("cypress/fixtures/testdata.json", { force: true });
+    cy.get(".t--widget-textwidget").should("contain", "baseUrl");
+    cy.get(".uppy-Dashboard-Item-action--remove").click({ force: true });
   });
 });

app/client/cypress/fixtures/Sample.tsv

@@ -0,0 +1,3 @@
+Some parameter	Other parameter	Last parameter
+CONST	123456	12.45
+Row2C1	Row2C2	Row2C3

app/client/src/widgets/DocumentViewerWidget/component/XlsxViewer.tsx

@@ -139,11 +139,11 @@ export default function XlsxViewer(props: { blob?: Blob }) {
     const sheetsData: RawSheetData[] = [];
     const sheetNames: string[] = [];
 
-    workbook.SheetNames.forEach((name, index) => {
-      sheetNames.push(name);
+    workbook.SheetNames.forEach((sheetName) => {
+      sheetNames.push(sheetName);
 
       const result: RawSheetData = XLSX.utils.sheet_to_json(
-        workbook.Sheets[workbook.SheetNames[index]],
+        workbook.Sheets[sheetName],
         { header: 1 },
       );
       sheetsData.push(result);

app/client/src/widgets/FilePickerWidgetV2/widget/FileParser.test.tsx

@@ -0,0 +1,210 @@
+import FileDataTypes from "../constants";
+import parseFileData from "./FileParser";
+import fs from "fs";
+const path = require("path");
+
+describe("File parser formats differenty file types correctly", () => {
+  it("parses csv file correclty", async () => {
+    const fixturePath = path.resolve(
+      __dirname,
+      "../../../../cypress/fixtures/Test_csv.csv",
+    );
+    const fileData = fs.readFileSync(fixturePath);
+    const blob = new Blob([fileData]);
+
+    const result = await parseFileData(
+      blob,
+      FileDataTypes.Array,
+      "text/csv",
+      "csv",
+      false,
+    );
+    const expectedResult = [
+      {
+        "Data Id": "hsa-miR-942-5p",
+        String: "Blue",
+        Number: "23.788",
+        Boolean: "TRUE",
+        Empty: "",
+        Date: "Wednesday, 20 January 1999",
+      },
+      {
+        "Data Id": "hsa-miR-943",
+        String: "Black",
+        Number: "1000",
+        Boolean: "FALSE",
+        Empty: "",
+        Date: "2022-09-15",
+      },
+    ];
+    expect(result).toStrictEqual(expectedResult);
+  });
+
+  it("parses json file correclty", async () => {
+    const fixturePath = path.resolve(
+      __dirname,
+      "../../../../cypress/fixtures/testdata.json",
+    );
+    const fileData = fs.readFileSync(fixturePath);
+    const blob = new Blob([fileData]);
+
+    const result = (await parseFileData(
+      blob,
+      FileDataTypes.Array,
+      "application/json",
+      "json",
+      false,
+    )) as Record<string, unknown>;
+    expect(result["APPURL"]).toStrictEqual(
+      "http://localhost:8081/app/app1/page1-63d38854252ca15b7ec9fabb",
+    );
+  });
+
+  it("parses tsv file correctly", async () => {
+    const fixturePath = path.resolve(
+      __dirname,
+      "../../../../cypress/fixtures/Sample.tsv",
+    );
+    const fileData = fs.readFileSync(fixturePath);
+    const blob = new Blob([fileData]);
+
+    const result = await parseFileData(
+      blob,
+      FileDataTypes.Array,
+      "text/tab-separated-values",
+      "tsv",
+      false,
+    );
+    const expectedResult = [
+      {
+        "Last parameter": "12.45",
+        "Other parameter": "123456",
+        "Some parameter": "CONST",
+      },
+      {
+        "Last parameter": "Row2C3",
+        "Other parameter": "Row2C2",
+        "Some parameter": "Row2C1",
+      },
+    ];
+    expect(result).toStrictEqual(expectedResult);
+  });
+
+  it("parses xlsx file correctly", async () => {
+    const fixturePath = path.resolve(
+      __dirname,
+      "../../../../cypress/fixtures/TestSpreadsheet.xlsx",
+    );
+    const fileData = fs.readFileSync(fixturePath);
+    const blob = new Blob([fileData]);
+
+    const result = await parseFileData(
+      blob,
+      FileDataTypes.Array,
+      "openxmlformats-officedocument.spreadsheet",
+      "xlsx",
+      false,
+    );
+    const expectedResult = [
+      {
+        data: [
+          ["Column A", "Column B", "Column C"],
+          ["r1a", "r1b", "r1c"],
+          ["r2a", "r2b", "r2c"],
+          ["r3a", "r3b", "r3c"],
+        ],
+        name: "Sheet1",
+      },
+    ];
+    expect(result).toStrictEqual(expectedResult);
+  });
+
+  it("parses xls file correctly", async () => {
+    const fixturePath = path.resolve(
+      __dirname,
+      "../../../../cypress/fixtures/SampleXLS.xls",
+    );
+    const fileData = fs.readFileSync(fixturePath);
+    const blob = new Blob([fileData]);
+
+    const result = (await parseFileData(
+      blob,
+      FileDataTypes.Array,
+      "",
+      "xls",
+      false,
+    )) as Record<string, Record<string, unknown>[]>[];
+    const expectedFirstRow = [
+      1,
+      "Dulce",
+      "Abril",
+      "Female",
+      "United States",
+      32,
+      "15/10/2017",
+      1562,
+    ];
+    expect(result[0]["name"]).toStrictEqual("Sheet1");
+    expect(result[0]["data"][1]).toStrictEqual(expectedFirstRow);
+  });
+
+  it("parses text file correctly", async () => {
+    const fixturePath = path.resolve(
+      __dirname,
+      "../../../../cypress/fixtures/testdata.json",
+    );
+    const fileData = fs.readFileSync(fixturePath);
+    const blob = new Blob([fileData]);
+
+    const result = await parseFileData(blob, FileDataTypes.Text, "", "", false);
+
+    expect(typeof result).toStrictEqual("string");
+    expect(result).toContain(
+      "http://localhost:8081/app/app1/page1-63d38854252ca15b7ec9fabb",
+    );
+  });
+
+  it("parses binary file correctly", async () => {
+    const fixturePath = path.resolve(
+      __dirname,
+      "../../../../cypress/fixtures/testdata.json",
+    );
+    const fileData = fs.readFileSync(fixturePath);
+    const blob = new Blob([fileData]);
+
+    const result = await parseFileData(
+      blob,
+      FileDataTypes.Binary,
+      "",
+      "",
+      false,
+    );
+
+    expect(typeof result).toStrictEqual("string");
+    expect(result).toContain(
+      "http://localhost:8081/app/app1/page1-63d38854252ca15b7ec9fabb",
+    );
+  });
+
+  it("parses base64 file correctly", async () => {
+    const fixturePath = path.resolve(
+      __dirname,
+      "../../../../cypress/fixtures/testdata.json",
+    );
+    const fileData = fs.readFileSync(fixturePath);
+    const blob = new Blob([fileData]);
+
+    const result = await parseFileData(
+      blob,
+      FileDataTypes.Base64,
+      "",
+      "",
+      false,
+    );
+
+    expect(typeof result).toStrictEqual("string");
+    expect(result).toContain(
+      "data:application/octet-stream;base64,ewogICJiYXNlVXJsIjogImh0",
+    );
+  });
+});

app/client/src/widgets/FilePickerWidgetV2/widget/FileParser.ts

@@ -0,0 +1,179 @@
+import Papa from "papaparse";
+import FileDataTypes from "../constants";
+import log from "loglevel";
+import * as XLSX from "xlsx";
+
+interface ExcelSheetData {
+  name: string;
+  data: unknown[];
+}
+
+type CSVRowData = Record<any, any>; // key represents column name, value represents cell value
+
+function parseFileData(
+  data: Blob,
+  type: FileDataTypes,
+  fileType: string,
+  extension: string,
+  dynamicTyping = false,
+): Promise<unknown> {
+  switch (type) {
+    case FileDataTypes.Base64: {
+      return parseBase64Blob(data);
+    }
+    case FileDataTypes.Binary: {
+      return parseBinaryString(data);
+    }
+    case FileDataTypes.Text: {
+      return parseText(data);
+    }
+    case FileDataTypes.Array: {
+      return parseArrayTypeFile(data, fileType, extension, dynamicTyping);
+    }
+  }
+}
+
+function parseBase64Blob(data: Blob): Promise<string> {
+  return new Promise((resolve) => {
+    const reader = new FileReader();
+    reader.readAsDataURL(data);
+    reader.onloadend = () => {
+      resolve(reader.result as string);
+    };
+  });
+}
+
+function parseBinaryString(data: Blob): Promise<string> {
+  return new Promise((resolve) => {
+    const reader = new FileReader();
+    reader.readAsBinaryString(data);
+    reader.onloadend = () => {
+      resolve(reader.result as string);
+    };
+  });
+}
+
+function parseText(data: Blob): Promise<string> {
+  return new Promise((resolve) => {
+    const reader = new FileReader();
+    reader.readAsText(data);
+    reader.onloadend = () => {
+      resolve(reader.result as string);
+    };
+  });
+}
+
+function parseArrayTypeFile(
+  data: Blob,
+  filetype: string,
+  extension: string,
+  dynamicTyping = false,
+): Promise<unknown> {
+  return new Promise((resolve) => {
+    (async () => {
+      let result: unknown = [];
+
+      if (filetype.indexOf("csv") > -1) {
+        result = await parseCSVBlob(data, dynamicTyping);
+      } else if (
+        filetype.indexOf("openxmlformats-officedocument.spreadsheet") > -1 ||
+        extension.indexOf("xls") > -1
+      ) {
+        result = await parseXLSFile(data);
+      } else if (filetype.indexOf("json") > -1) {
+        result = parseJSONFile(data);
+      } else if (filetype.indexOf("text/tab-separated-values") > -1) {
+        result = await parseCSVBlob(data, dynamicTyping);
+      }
+      resolve(result);
+    })();
+  });
+}
+
+function parseJSONFile(data: Blob): Promise<Record<string, unknown>> {
+  return new Promise((resolve) => {
+    const reader = new FileReader();
+    reader.onloadend = () => {
+      let result: Record<string, unknown> = {};
+      try {
+        result = JSON.parse(reader.result as string);
+      } catch {}
+      resolve(result);
+    };
+    reader.readAsText(data);
+  });
+}
+
+function parseXLSFile(data: Blob): Promise<ExcelSheetData[]> {
+  return new Promise((resolve) => {
+    const reader = new FileReader();
+    reader.onloadend = () => {
+      const sheetsData: ExcelSheetData[] = [];
+      const workbook = XLSX.read(reader.result as ArrayBuffer, {
+        type: "array",
+      });
+
+      workbook.SheetNames.forEach((sheetName) => {
+        const sheetData: ExcelSheetData = { name: "", data: [] };
+        try {
+          const data = XLSX.utils.sheet_to_json(workbook.Sheets[sheetName], {
+            header: 1,
+          });
+          sheetData["name"] = sheetName;
+          sheetData["data"] = data;
+          sheetsData.push(sheetData);
+        } catch {}
+      });
+      resolve(sheetsData);
+    };
+    reader.readAsArrayBuffer(data);
+  });
+}
+
+function parseCSVBlob(
+  data: Blob,
+  dynamicTyping = false,
+): Promise<CSVRowData[]> {
+  return new Promise((resolve) => {
+    const reader = new FileReader();
+    reader.onloadend = () => {
+      let result: CSVRowData[] = [];
+      try {
+        result = parseCSVString(reader.result as string, dynamicTyping);
+      } catch {}
+      resolve(result);
+    };
+    reader.readAsText(data);
+  });
+}
+
+function parseCSVString(data: string, dynamicTyping = false): CSVRowData[] {
+  const result: CSVRowData[] = [];
+  const errors: Papa.ParseError[] = [];
+
+  function chunk(results: Papa.ParseStepResult<any>) {
+    if (results?.errors?.length) {
+      errors.push(...results.errors);
+    }
+    result.push(...results.data);
+  }
+
+  const config = {
+    header: true,
+    dynamicTyping: dynamicTyping,
+    chunk,
+  };
+
+  const startParsing = performance.now();
+  Papa.parse(data, config);
+
+  const endParsing = performance.now();
+
+  log.debug(
+    `### FILE_PICKER_WIDGET_V2 - CSV PARSING  `,
+    `${endParsing - startParsing} ms`,
+  );
+  return result;
+}
+
+export default parseFileData;

app/client/src/widgets/FilePickerWidgetV2/widget/index.tsx

@@ -17,7 +17,7 @@ import { EvaluationSubstitutionType } from "entities/DataTree/dataTreeFactory";
 import { klona } from "klona";
 import _, { findIndex } from "lodash";
 import log from "loglevel";
-import Papa from "papaparse";
+
 import React from "react";
 import shallowequal from "shallowequal";
 import { createGlobalStyle } from "styled-components";
@@ -29,15 +29,11 @@ import FilePickerComponent from "../component";
 import FileDataTypes from "../constants";
 import { DefaultAutocompleteDefinitions } from "widgets/WidgetUtils";
 import type { AutocompletionDefinitions } from "widgets/constants";
+import parseFileData from "./FileParser";
 
-const CSV_ARRAY_LABEL = "Array (CSVs only)";
-const CSV_FILE_TYPE_REGEX = /.+(\/csv)$/;
+const CSV_ARRAY_LABEL = "Array of Objects (CSV, XLS(X), JSON, TSV)";
 
-const ARRAY_CSV_HELPER_TEXT = `All non csv filetypes will have an empty value. \n Large files used in widgets directly might slow down the app.`;
-
-const isCSVFileType = (str: string) => CSV_FILE_TYPE_REGEX.test(str);
-
-type Result = string | Buffer | ArrayBuffer | null;
+const ARRAY_CSV_HELPER_TEXT = `All non CSV, XLS(X), JSON or TSV filetypes will have an empty value. \n Large files used in widgets directly might slow down the app.`;
 
 const FilePickerGlobalStyles = createGlobalStyle<{
   borderRadius?: string;
@@ -330,7 +326,7 @@ class FilePickerWidget extends BaseWidget<
             propertyName: "dynamicTyping",
             label: "Infer data-types from CSV",
             helpText:
-              "Controls if the arrays should try to infer the best possible data type based on the values in csv files",
+              "Controls if the arrays should try to infer the best possible data type based on the values in CSV file",
             controlType: "SWITCH",
             isJSConvertible: false,
             isBindProperty: true,
@@ -641,7 +637,7 @@ class FilePickerWidget extends BaseWidget<
       });
     }
 
-    this.state.uppy.on("file-removed", (file: any, reason: any) => {
+    this.state.uppy.on("file-removed", (file: UppyFile, reason: any) => {
       /**
        * The below line will not update the selectedFiles meta prop when cancel-all event is triggered.
        * cancel-all event occurs when close or reset function of uppy is executed.
@@ -678,42 +674,29 @@ class FilePickerWidget extends BaseWidget<
       }
     });
 
-    this.state.uppy.on("files-added", (files: any[]) => {
+    this.state.uppy.on("files-added", (files: UppyFile[]) => {
       // Deep cloning the selectedFiles
       const selectedFiles = this.props.selectedFiles
         ? klona(this.props.selectedFiles)
         : [];
 
       const fileCount = this.props.selectedFiles?.length || 0;
-      const fileReaderPromises = files.map((file, index) => {
+      const fileReaderPromises = files.map(async (file, index) => {
         return new Promise((resolve) => {
-          if (file.size < FILE_SIZE_LIMIT_FOR_BLOBS) {
-            const reader = new FileReader();
-            if (this.props.fileDataType === FileDataTypes.Base64) {
-              reader.readAsDataURL(file.data);
-            } else if (this.props.fileDataType === FileDataTypes.Binary) {
-              reader.readAsBinaryString(file.data);
+          (async () => {
+            let data: unknown;
+            if (file.size < FILE_SIZE_LIMIT_FOR_BLOBS) {
+              data = await parseFileData(
+                file.data,
+                this.props.fileDataType,
+                file.type || "",
+                file.extension,
+                this.props.dynamicTyping,
+              );
             } else {
-              reader.readAsText(file.data);
+              data = createBlobUrl(file.data, this.props.fileDataType);
             }
-            reader.onloadend = () => {
-              const newFile = {
-                type: file.type,
-                id: file.id,
-                data: this.parseUploadResult(
-                  reader.result,
-                  file.type,
-                  this.props.fileDataType,
-                ),
-                meta: file.meta,
-                name: file.meta ? file.meta.name : `File-${index + fileCount}`,
-                size: file.size,
-                dataFormat: this.props.fileDataType,
-              };
-              resolve(newFile);
-            };
-          } else {
-            const data = createBlobUrl(file.data, this.props.fileDataType);
+
             const newFile = {
               type: file.type,
               id: file.id,
@@ -724,7 +707,7 @@ class FilePickerWidget extends BaseWidget<
               dataFormat: this.props.fileDataType,
             };
             resolve(newFile);
-          }
+          })();
         });
       });
 
@@ -861,57 +844,6 @@ class FilePickerWidget extends BaseWidget<
     );
   }
 
-  parseUploadResult(
-    result: Result,
-    fileType: string,
-    dataFormat: FileDataTypes,
-  ) {
-    if (
-      dataFormat !== FileDataTypes.Array ||
-      !isCSVFileType(fileType) ||
-      !result
-    ) {
-      return result;
-    }
-
-    const data: Record<string, string>[] = [];
-    const errors: Papa.ParseError[] = [];
-
-    function chunk(results: Papa.ParseStepResult<any>) {
-      if (results?.errors?.length) {
-        errors.push(...results.errors);
-      }
-      data.push(...results.data);
-    }
-
-    if (typeof result === "string") {
-      const config = {
-        header: true,
-        dynamicTyping: this.props.dynamicTyping,
-        chunk,
-      };
-      try {
-        const startParsing = performance.now();
-
-        Papa.parse(result, config);
-
-        const endParsing = performance.now();
-
-        log.debug(
-          `### FILE_PICKER_WIDGET_V2 - ${this.props.widgetName} - CSV PARSING  `,
-          `${endParsing - startParsing} ms`,
-        );
-
-        return data;
-      } catch (error) {
-        log.error(errors);
-        return [];
-      }
-    } else {
-      return [];
-    }
-  }
-
   static getWidgetType(): WidgetType {
     return "FILE_PICKER_WIDGET_V2";
   }