Does that mean the file is ASCII or UTF-8 or UTF-8 with Byte Order Mark (BOM)??

Does the file contain any TAB characters or CR/LF sequences? 

I think they are trying to check the value of a text field, rather than a file.... Christine, there are not any built-in SBM AppScript functions for this type of check. However, AppScript is based on VBScript 4.0. So, I would suggest googling for an vmscript function that does this check. I would guess that you could find some good example out there.

Arg!  Mis-read "Field" as "File".  Rented brain.

Christine: Is this on a Transition form?  It would be relatively easy with JavaScript to strip any character in a Text field that isn't in the range of decimal 32 (0x20; ASCII SPACE character " ") to decimal 126 (0x7E; ASCII TILDE "~").

The JavaScript could also confirm that a Text field only contains Alphanumeric chars without modifying the field.  What do you want to do with the result of that evaluation?

I never used JavaScript in SBM. Can you help me to write this javascript. I just want to check this field and If there is a bad character, ask the user to change.

You could use a form action to match regular expressions. I think my screenshot is backwords. if it matches, make it successful, otherwise display the error. but it gives you an example. 

Another option, if this is a fixed length field and there is a specific format required (i.e. phone number), you can use the input mask option. 

Hello How can I write a custom input mask? Thanks.

Hello How can I write a custom input mask? Thanks.

https://docs.microfocus.com/doc/Solutions_Business_Manager/12.1/ttst_form_proped_general

Hello, thanks   for the good solution for my problem and thanks all for your time and your answers. Best Regards from France. Christine

It'ok for application fields but doesn't work for fields in secondary table

I am not sure I understand your comment.  If you create a form for your auxiliary table, then you have the same input mas property available for text fields, just like the application fields.

I created a form for submit of the secondary table and put an input mask for 2 fields : one 'aaaa' and one 'date'. Doesn't work. I don't know why. It's ok for fields in primary tables

This should work in auxiliary tables as well.  I just tested in 11.8 and was successful.  The documentation does indicate that the "Include jquery plugin" check box needs to be checked in the Javascript properties of the form.  

I work with 12.1, perhaps this is the problem 

Hello it's ok now. I forgot to declare the submit form in the secondary table. Thanks for your help.