diff --git a/imports/server/exportimport/expImpFilesAttachments.js b/imports/server/exportimport/expImpFilesAttachments.js
index 389b29aa7..836066d8a 100644
--- a/imports/server/exportimport/expImpFilesAttachments.js
+++ b/imports/server/exportimport/expImpFilesAttachments.js
@@ -1,5 +1,5 @@
-const fs = require("fs");
-const EJSON = require("bson");
+import { writeFileSync, readFileSync } from "fs";
+import { stringify, parse } from "bson";
 
 class ExpImpFilesAttachments {
   static get FILENAME_POSTFIX() {
@@ -14,7 +14,7 @@ class ExpImpFilesAttachments {
         .then((doc) => {
           if (doc) {
             const attFile = msID + ExpImpFilesAttachments.FILENAME_POSTFIX;
-            fs.writeFileSync(attFile, EJSON.stringify(doc, null, 2));
+            writeFileSync(attFile, stringify(doc, null, 2));
             console.log(
               `Saved: ${attFile} with ${doc.length} file attachments`,
             );
@@ -37,8 +37,8 @@ class ExpImpFilesAttachments {
       const attachmentFile = msID + ExpImpFilesAttachments.FILENAME_POSTFIX;
       let AllAttachmentsDoc = undefined;
       try {
-        AllAttachmentsDoc = EJSON.parse(
-          fs.readFileSync(attachmentFile, "utf8"),
+        AllAttachmentsDoc = parse(
+          readFileSync(attachmentFile, "utf8"),
         );
         if (!AllAttachmentsDoc) {
           return reject(`Could not read attachment file ${attachmentFile}`);
@@ -94,4 +94,4 @@ class ExpImpFilesAttachments {
   }
 }
 
-module.exports = ExpImpFilesAttachments;
+export default ExpImpFilesAttachments;
diff --git a/imports/server/exportimport/expImpFilesDocuments.js b/imports/server/exportimport/expImpFilesDocuments.js
index d43e4cc61..91fa3c172 100644
--- a/imports/server/exportimport/expImpFilesDocuments.js
+++ b/imports/server/exportimport/expImpFilesDocuments.js
@@ -1,5 +1,5 @@
-const fs = require("fs");
-const EJSON = require("bson");
+import { writeFileSync, readFileSync } from "fs";
+import { stringify, parse } from "bson";
 
 class ExpImpFilesDocuments {
   static get FILENAME_POSTFIX() {
@@ -14,7 +14,7 @@ class ExpImpFilesDocuments {
         .then((doc) => {
           if (doc) {
             const protFile = msID + ExpImpFilesDocuments.FILENAME_POSTFIX;
-            fs.writeFileSync(protFile, EJSON.stringify(doc, null, 2));
+            writeFileSync(protFile, stringify(doc, null, 2));
             console.log(
               `Saved: ${protFile} with ${doc.length} protocol documents`,
             );
@@ -42,7 +42,7 @@ class ExpImpFilesDocuments {
       const protFile = msID + ExpImpFilesDocuments.FILENAME_POSTFIX;
       let AllProtocolsDoc = undefined;
       try {
-        AllProtocolsDoc = EJSON.parse(fs.readFileSync(protFile, "utf8"));
+        AllProtocolsDoc = parse(readFileSync(protFile, "utf8"));
         if (!AllProtocolsDoc) {
           return reject(`Could not read documents file ${protFile}`);
         }
@@ -97,4 +97,4 @@ class ExpImpFilesDocuments {
   }
 }
 
-module.exports = ExpImpFilesDocuments;
+export default ExpImpFilesDocuments;
diff --git a/imports/server/exportimport/expImpMeetingseries.js b/imports/server/exportimport/expImpMeetingseries.js
index df1d549b3..f4c0d500f 100644
--- a/imports/server/exportimport/expImpMeetingseries.js
+++ b/imports/server/exportimport/expImpMeetingseries.js
@@ -1,5 +1,5 @@
-const fs = require("fs");
-const EJSON = require("bson");
+import { writeFileSync, readFileSync } from "fs";
+import { stringify, parse } from "bson";
 
 class ExpImpMeetingSeries {
   static get FILENAME_POSTFIX() {
@@ -14,7 +14,7 @@ class ExpImpMeetingSeries {
         .then((doc) => {
           if (doc) {
             const msFile = msID + ExpImpMeetingSeries.FILENAME_POSTFIX;
-            fs.writeFileSync(msFile, EJSON.stringify(doc, null, 2));
+            writeFileSync(msFile, stringify(doc, null, 2));
             console.log(`Saved: ${msFile}`);
             doc.visibleFor?.map((userID) => {
               userIDs[userID] = 1;
@@ -43,7 +43,7 @@ class ExpImpMeetingSeries {
           const msFile = msID + ExpImpMeetingSeries.FILENAME_POSTFIX;
           let msDoc = undefined;
           try {
-            msDoc = EJSON.parse(fs.readFileSync(msFile, "utf8"));
+            msDoc = parse(readFileSync(msFile, "utf8"));
             if (!msDoc) {
               return reject(`Could not read meeting series file ${msFile}`);
             }
@@ -75,4 +75,4 @@ class ExpImpMeetingSeries {
   }
 }
 
-module.exports = ExpImpMeetingSeries;
+export default ExpImpMeetingSeries;
diff --git a/imports/server/exportimport/expImpMinutes.js b/imports/server/exportimport/expImpMinutes.js
index d7ff11972..e3c0a573f 100644
--- a/imports/server/exportimport/expImpMinutes.js
+++ b/imports/server/exportimport/expImpMinutes.js
@@ -1,6 +1,6 @@
-const fs = require("fs");
-const EJSON = require("bson");
-const ExpImpTopics = require("./expImpTopics");
+import { writeFileSync, readFileSync } from "fs";
+import { stringify, parse } from "bson";
+import { patchUsers as _patchUsers } from "./expImpTopics";
 
 class ExpImpMinutes {
   static get FILENAME_POSTFIX() {
@@ -25,7 +25,7 @@ class ExpImpMinutes {
         .then((allMinutesDoc) => {
           if (allMinutesDoc) {
             const minFile = msID + ExpImpMinutes.FILENAME_POSTFIX;
-            fs.writeFileSync(minFile, EJSON.stringify(allMinutesDoc, null, 2));
+            writeFileSync(minFile, stringify(allMinutesDoc, null, 2));
             console.log(
               `Saved: ${minFile} with ${allMinutesDoc.length} minutes`,
             );
@@ -72,7 +72,7 @@ class ExpImpMinutes {
       const minFile = msID + ExpImpMinutes.FILENAME_POSTFIX;
       let minDoc = undefined;
       try {
-        minDoc = EJSON.parse(fs.readFileSync(minFile, "utf8"));
+        minDoc = parse(readFileSync(minFile, "utf8"));
         if (!minDoc) {
           return reject(new Error(`Could not read minutes file ${minFile}`));
         }
@@ -137,7 +137,7 @@ class ExpImpMinutes {
 
       // iterate topics
       for (let t = 0; element.topics && t < element.topics.length; t++) {
-        element.topics[t] = ExpImpTopics.patchUsers(element.topics[t], usrMap);
+        element.topics[t] = _patchUsers(element.topics[t], usrMap);
       }
     }
 
@@ -145,4 +145,4 @@ class ExpImpMinutes {
   }
 }
 
-module.exports = ExpImpMinutes;
+export default ExpImpMinutes;
diff --git a/imports/server/exportimport/expImpSchema.js b/imports/server/exportimport/expImpSchema.js
index be10e1ac9..31fcb9f86 100644
--- a/imports/server/exportimport/expImpSchema.js
+++ b/imports/server/exportimport/expImpSchema.js
@@ -1,5 +1,5 @@
-const fs = require("fs");
-const EJSON = require("bson");
+import { writeFileSync, readFileSync } from "fs";
+import { stringify, parse } from "bson";
 
 class ExpImpSchema {
   static get MADE_FOR_SCHEMA() {
@@ -34,7 +34,7 @@ class ExpImpSchema {
               );
             }
             const schemaFile = msID + ExpImpSchema.FILENAME_POSTFIX;
-            fs.writeFileSync(schemaFile, EJSON.stringify(doc, null, 2));
+            writeFileSync(schemaFile, stringify(doc, null, 2));
             console.log(`Saved: ${schemaFile}`);
             resolve(db);
             return;
@@ -57,7 +57,7 @@ class ExpImpSchema {
             const schemaFile = msID + ExpImpSchema.FILENAME_POSTFIX;
             let exportedSchema = undefined;
             try {
-              exportedSchema = EJSON.parse(fs.readFileSync(schemaFile, "utf8"));
+              exportedSchema = parse(readFileSync(schemaFile, "utf8"));
               if (!exportedSchema) {
                 return reject(`Could not read schema file ${schemaFile}`);
               }
@@ -107,4 +107,4 @@ class ExpImpSchema {
   }
 }
 
-module.exports = ExpImpSchema;
+export default ExpImpSchema;
diff --git a/imports/server/exportimport/expImpTopics.js b/imports/server/exportimport/expImpTopics.js
index ec4cf19e8..82ad821e3 100644
--- a/imports/server/exportimport/expImpTopics.js
+++ b/imports/server/exportimport/expImpTopics.js
@@ -1,5 +1,5 @@
-const fs = require("fs");
-const EJSON = require("bson");
+import { writeFileSync, readFileSync } from "fs";
+import { stringify, parse } from "bson";
 
 class ExpImpTopics {
   static get FILENAME_POSTFIX() {
@@ -14,7 +14,7 @@ class ExpImpTopics {
         .then((doc) => {
           if (doc) {
             const topFile = msID + ExpImpTopics.FILENAME_POSTFIX;
-            fs.writeFileSync(topFile, EJSON.stringify(doc, null, 2));
+            writeFileSync(topFile, stringify(doc, null, 2));
             console.log(`Saved: ${topFile} with ${doc.length} topics`);
             resolve({ db, userIDs });
             return;
@@ -29,7 +29,7 @@ class ExpImpTopics {
       const topFile = msID + ExpImpTopics.FILENAME_POSTFIX;
       let AllTopicsDoc = undefined;
       try {
-        AllTopicsDoc = EJSON.parse(fs.readFileSync(topFile, "utf8"));
+        AllTopicsDoc = parse(readFileSync(topFile, "utf8"));
         if (!AllTopicsDoc) {
           return reject(`Could not read topic file ${topFile}`);
         }
@@ -97,4 +97,4 @@ class ExpImpTopics {
   }
 }
 
-module.exports = ExpImpTopics;
+export default ExpImpTopics;
diff --git a/imports/server/exportimport/expImpUsers.js b/imports/server/exportimport/expImpUsers.js
index 0b8cd8128..51bfd8625 100644
--- a/imports/server/exportimport/expImpUsers.js
+++ b/imports/server/exportimport/expImpUsers.js
@@ -1,5 +1,5 @@
-const fs = require("fs");
-const EJSON = require("bson");
+import { writeFileSync, readFileSync } from "fs";
+import { stringify, parse } from "bson";
 
 class ExpImpUsers {
   static get FILENAME_POSTFIX() {
@@ -36,7 +36,7 @@ class ExpImpUsers {
               userIDsFromDB[usr._id] = 1;
             });
             const usrFile = msID + ExpImpUsers.FILENAME_POSTFIX;
-            fs.writeFileSync(usrFile, EJSON.stringify(allUsersDoc, null, 2));
+            writeFileSync(usrFile, stringify(allUsersDoc, null, 2));
             console.log(`Saved: ${usrFile} with ${allUsersDoc.length} users`);
 
             // Save mapping file old => new user ID
@@ -55,7 +55,7 @@ class ExpImpUsers {
               }
             });
             const mapFile = msID + ExpImpUsers.MAPNAME_POSTFIX;
-            fs.writeFileSync(mapFile, JSON.stringify(userIDsOuputMap, null, 2));
+            writeFileSync(mapFile, JSON.stringify(userIDsOuputMap, null, 2));
             console.log(`Saved: ${mapFile}`);
             console.log(
               "       *** IMPORTANT!!! EDIT USER MAP FILE BEFORE IMPORT!!!",
@@ -74,7 +74,7 @@ class ExpImpUsers {
       const mapFile = msID + ExpImpUsers.MAPNAME_POSTFIX;
       let usrMap = undefined;
       try {
-        usrMap = JSON.parse(fs.readFileSync(mapFile, "utf8"));
+        usrMap = JSON.parse(readFileSync(mapFile, "utf8"));
         if (!usrMap) {
           return reject(`Could not read user map file ${mapFile}`);
         }
@@ -146,7 +146,7 @@ class ExpImpUsers {
       const usrFile = msID + ExpImpUsers.FILENAME_POSTFIX;
       let allUsersDoc = undefined;
       try {
-        allUsersDoc = EJSON.parse(fs.readFileSync(usrFile, "utf8"));
+        allUsersDoc = parse(readFileSync(usrFile, "utf8"));
         if (!allUsersDoc) {
           return reject(`Could not read user file ${usrFile}`);
         }
@@ -205,4 +205,4 @@ class ExpImpUsers {
   }
 }
 
-module.exports = ExpImpUsers;
+export default ExpImpUsers;