How do I open a otf or a ttf?

[sir_j]

I have downloaded the file, unzipped it, opened it, and installed it. 

Next, I went to the illustrator app, I opened my files, open the otf file, and illustrator says "Clarista.otf is an unknown file format" 

What is up with that???

[キィィ─!!!]

Hi,sir_j.

Illustrator is not a font editor.
Open the font file and what are you trying to do?

[federico platon]

The unzipped file is just a font(s) file? 

Open to edit it in a font editor app, OR just use the font by installing it in your Windows/OSX system.

If the files contain artwork plus some fonts, you just have to install those fonts (in Windows 10, click on right button  mouse to choose that opotion). When you open your artwork files, text objects will use and display correctly those fonts. 

[GuapaGuapa]

I have a question. I bought files online and they came with 2 otf files and a license. I am currently running adobe on Android s23 ultra. Which adobe app would i run to open these ? None of them work. I cant seem to add these fonts anywhere. When i try wirh acrobat it says. "No app found on device that can open file type"

[Ton Frederiks]

The pdf file can be opened in Acrobat. The .otf files are fonts and need to be installed in your system.

[Larry G. Schneider]

You need to use your system tools to install the two .otf file into the system font folder. They then should be available to be used by the apps on your system.

[GuapaGuapa]

Thanks for getting back to me guys. Do you by any chance have specific steps on how to do this on an android phone ? Nothing works. No apps nor anything in the system seems to open the otf files 

[Larry G. Schneider]

What exactly is an Android S23 Ultra? There are no current versions of Adobe apps for Android that I am aware of. 

[Bobby Henderson]

I think he means a Samsung Galaxy S23 Ultra smart phone. There is a limited number of Adobe mobile applications that run on Android. It isn't very easy to install fonts locally on an Android phone.

A phone user can go into Settings>Display>Font Size and Style>Font Style and see an option to Download Fonts. But that takes the user into a Samsung Galaxy store where a variety of free or paid fonts are available to download the same way as apps. It doesn't offer a path to fonts that are copied into a local folder on the phone.

I think the only way someone can install fonts locally on an Android phone is by using a third party font management app. Here is one tutorial for doing so:
https://www.androidauthority.com/install-fonts-android-279698/

[Larry G. Schneider]

Thanks, Bobby.

[kimb34409473tw7i]

is there a way to do this on a mac book? im having the same issue where it wont allow me to use otf files.

[Bobby Henderson]

Are you unable to install any OpenType fonts in your MacBook, or is the problem confined to a particular font file or set of fonts? Are the fonts files something you purchased or downloaded from a free fonts site?