The format or audio codec support for photo and video files in your iOS version determines where the files are stored.
By default, photos and videos received via Send Anywhere iOS app are saved to the native Photos app's Camera Roll and categorized under the Photos and Videos tabs in Send Anywhere app's Send menu.
However, if the received file has a format or audio codec not supported by your iOS version, it cannot be saved to the Photos app and will be saved to Send Anywhere folder in the native Files app, and the file will be displayed under the Files tab in Send Menu of Send Anywhere app.
Therefore, any files other than photo and video files supported by iOS will be saved to the File tab of the Send menu.
✔ To prevent files from being auto-saved to the Camera Roll
1. Tap ☰ Menu icon in the upper left corner.
2. Tap Settings.
3. Under Receive, disable Auto-Save to Camera Roll.
After then, all photos and videos received through Send Anywhere app will be saved in the File tab of the Send menu.
✔ To open a file in the Files tab in another app
1. Select a file in the Files tab of the Send menu.
2. Tap (⋮) ellipsis icon next to the Send button at the bottom.
3. Tap Open in....
4. Select the desired app from the list of apps. The file will launch in the selected app.
✔ To manually save a photo or video file in the Files tab to Camera Roll
1. Select a file from the File tab of the Send menu.
2. Tap (⋮) ellipsis icon next to the Send button at the bottom.
3. Tap Move files to Camera Roll.
✳︎ If the file type is not supported by your iOS version, 'Move files to Camera Roll' button is not displayed.
✳︎ Even if the video file has an audio codec not supported by your iOS version, you won't be able to 'Move File to Camera Roll.' See more help.