Remove characters from middle in filename

[donotbugme]

I copied lots of files with long file name (+256 char) to my windows, now most of the windows applications are not able to access those files.

How do i remove characters from middle and keep the beginning and end part of filename via rename function?

Thanks

[NotNull]

Please post some examples and their matching desired new filenames.

[donotbugme]

• @poplens_official GLOWY NATURAL 1DAY MOCHABROWNｸﾞﾛｰｲ ﾅﾁｭﾗﾙ ﾜﾝﾃﾞｲ ﾓｶﾌﾞﾗｳﾝツヤツヤと輝く水光カラコン#水光カラコン ナチュラルなハイライターパターンと淡くやわらかなサークルラインがちゅるんと立体的な目元演出1Day（10枚入り）・DIA 14.2mm 着色直径 13.0mm 含水率 43％・G 3225805241408509784_3225805236090035345.jpg.json
  
  @powderroom_jp ﾊﾟｳﾀﾞｰﾙｰﾑ のﾋﾞｭｰﾃｨｰｱﾝﾊﾞｻﾀﾞｰ【ビューティーアイドル】に就任!!☺︎今回はそのWelcome Boxを紹介☟-espoir @espoir_jp PRO TAILOR BE VELVET COVER CUSHION21 IVORY ｱｲﾎﾞﾘｰSPF34 PA++ セミマットの高密着ｸｯｼｮﾝﾌｧﾝﾃﾞｰｼｮﾝ-NAM 3251100935228499876_3251100929767730393.jpg
  
  ☆☆［bewants］アイセラムスティック写真　①after ②before 目の周りの小じわや、たるみ改善スチールボールによってﾏｯｻｰｼﾞや目の浮腫み改善にも目だけではなく首やほうれい線、自分の気になる部分に全て使えます☺︎これを機にｽｷﾝｹｱしながら目をもっとｹｱするように(　˙-˙　)ﾏｯｻｰｼﾞ出来て保湿されて使いやすいー【1週間使って…】目の下のシワ気に 3207750334168408797_3207742501414600163.json
  
  ☆☆［bewants］アイセラムスティック写真　①after ②before 目の周りの小じわや、たるみ改善スチールボールによってﾏｯｻｰｼﾞや目の浮腫み 3207750334168408797.json
  
  !!☺︎今回はそのWelcome Boxを紹介☟-espoir @espoir_jp PRO TAILOR BE VELVET COVER CUSHION21 IVORY ｱｲﾎﾞﾘｰSPF34 PA++ セミマットの高密着ｸｯｼｮﾝﾌｧﾝﾃﾞｰｼｮﾝ-NAM 3251100935228499876.jpg

Last part is a unique identifier (IE 3251100935228499876, 3207750334168408797_3207742501414600163 ect) and first part of the file name is for easier human readability/identify, under 200 character is much better for windows.

File name length is vary, i think its best to trim equally from middle to both side or trim backward to title from UID.

[NotNull]

and their matching desired new filenames

As you didn't provide that, my interpretation:
First 50 characters of filename + __ + unique identifier + rest of filename.

- Selaect all files (CTRL+A)
- Press F2
- Uncheck all checkboxes
- Check Regular Expressions
- Old format:

^(.*?)([0-9_]{15,})(\..*)$

- New Format:

[left:\1,50]__\2\3

- Check New Filenames box
- If results are as expected, press OK