diff --git a/application/views/adif/import.php b/application/views/adif/import.php
index 2454d59a7..f737173be 100644
--- a/application/views/adif/import.php
+++ b/application/views/adif/import.php
@@ -369,7 +369,7 @@
                                 <div class="small form-text text-muted"><?= __("If unchecked, information about QSOs which could not be found in Wavelog will be displayed.") ?></div>
                             </div>
                         </div>
-                        <input class="form-control w-auto mb-2 me-sm-2" type="file" name="userfile" size="20" />
+                        <input class="form-control w-auto mb-2 me-sm-2" type="file" name="userfile" size="20" accept=".adi,.ADI,.adif,.ADIF" />
                         <button type="submit" class="btn btn-sm btn-primary mb-2" value="Upload"><?= __("Upload") ?></button>
                     </form>
                 </div>
@@ -391,7 +391,7 @@
                     <p><?= sprintf(__("An example for a tool to export the POTA hunter log in ADIF format is %s made by AF0G and available on GitHub."), '<a target="_blank" href="https://github.com/adamfast/pota-hunter-log-adif">'.'pota-hunter-log-adif'.'</a>'); ?></p>
                     <form class="form" action="<?php echo site_url('adif/pota'); ?>" method="post" enctype="multipart/form-data">
 
-                        <input class="form-control w-auto mb-2 me-sm-2" type="file" name="userfile" size="20" />
+                        <input class="form-control w-auto mb-2 me-sm-2" type="file" name="userfile" size="20" accept=".adi,.ADI,.adif,.ADIF" />
                         <button type="submit" class="btn btn-sm btn-primary mb-2" value="Upload"><?= __("Upload") ?></button>
                     </form>
                 </div>
@@ -435,7 +435,7 @@
                                 <div class="small form-text text-muted"><?= __("If unchecked, this will erase the default serial number that (for example) N1MM+ produces. If checked, it will correct the serial number if necessary.") ?></div>
                             </div>
                         </div>
-                        <input class="form-control w-auto mb-2 me-sm-2" type="file" name="userfile" size="20" />
+                        <input class="form-control w-auto mb-2 me-sm-2" type="file" name="userfile" size="20" accept=".cbr,.CBR" />
                         <button type="submit" class="btn btn-sm btn-primary mb-2" value="Upload"><?= __("Upload") ?></button>
                     </form>
                 </div>
diff --git a/application/views/eqsl/import.php b/application/views/eqsl/import.php
index 88c6c9e58..a22c2cc4c 100644
--- a/application/views/eqsl/import.php
+++ b/application/views/eqsl/import.php
@@ -44,7 +44,7 @@
 					} ?>
 				</select>
 				<p><span class="badge bg-info me-1"><?= __("Important"); ?></span><?= __("Log files must have the file type .adi"); ?></p>
-				<input class="form-control mb-2 me-sm-2 mt-1 w-50 w-lg-100" type="file" name="userfile" size="20" />
+				<input class="form-control mb-2 me-sm-2 mt-1 w-50 w-lg-100" type="file" name="userfile" size="20" accept=".adi,.ADI,.adif,.ADIF" />
 			</div>
 			<hr class="divider">
 			<?php if (!($this->config->item('disable_manual_eqsl'))) { ?>
diff --git a/application/views/lotw/import.php b/application/views/lotw/import.php
index 8b0d9d36f..c65e3fed0 100644
--- a/application/views/lotw/import.php
+++ b/application/views/lotw/import.php
@@ -25,7 +25,7 @@
         <p><span class="badge text-bg-info"><?= __("Important"); ?></span> <?= __("Log files must have the file type .adi"); ?></p>
 
         <label class="visually-hidden" for="adiffile"><?= __("Choose file"); ?></label>
-        <input type="file" class="file-input mb-2 me-sm-2" id="adiffile" name="userfile" size="20" />
+        <input type="file" class="file-input mb-2 me-sm-2" id="adiffile" name="userfile" size="20" accept=".adi,.ADI,.adif,.ADIF" />
       </div>
 
       <br><br>
diff --git a/application/views/lotw_views/upload_cert.php b/application/views/lotw_views/upload_cert.php
index 5bd12cd55..ebbafe022 100644
--- a/application/views/lotw_views/upload_cert.php
+++ b/application/views/lotw_views/upload_cert.php
@@ -32,7 +32,7 @@
 			<?php echo form_open_multipart('lotw/do_cert_upload');?>
 				<div class="mb-3">
 					<label for="exampleFormControlFile1"><?= __("Upload Logbook of the World .p12 Certificate"); ?></label>
-					<input type="file" name="userfile" class="form-control" id="exampleFormControlFile1">
+					<input type="file" name="userfile" class="form-control" id="exampleFormControlFile1" accept=".p12,.P12">
 				 </div>
 
 				<button type="submit" value="upload" class="btn btn-primary"><?= __("Upload File"); ?></button>