Restrictions on SharePoint 2013 (iii) Illegal characters

There are some characters in SharePoint that are not allowed to be used. For example, SharePoint will prevent uploading some types of files, such as EXE, by default.

For example, uploading a file with the name {} will be prompted as follows:

In addition, SharePoint has a lot of illegal characters.

For example, I create a new folder named Home.files:

After clicking Save, SharePoint adds an underscore to the following.

So what are the characters that are illegal in SharePoint? In http://support.microsoft.com/en-us/kb/905231, the detailed description of the site, user groups, folders, file names of illegal characters.

In addition to illegal characters, there are also some combinations that are not available. For example, two consecutive points (.) is not to be used in the name.

For example, a dot (.) is not a starting or ending character for a site's name. An underscore is a starting character that cannot be used as a site name.

Restrictions on SharePoint 2013 (iii) Illegal characters