My dashboard will not open file, grades and I cannot upload any assignment,I don't have access.Canvas Training
Hi @garciajeannette 
I'm wondering if you have a browser issue.
Check your device compatibility: What are the basic computer specifications for Canvas?
Check your browser compatibility: Which browsers does Canvas support?
Note that *Internet Explorer 11 is not a supported browser.*
Try a different browser. The latest version of Chrome works great in both Windows and MacOS.
If none of these methods solve the problem, contact Canvas Support. General instructions are in How do I get help with Canvas as a student? , but your school’s support setup might vary somewhat, in which case ask your local IT Department for additional troubleshooting assistance.
This might also be handy Computer Readiness Test: OEI Online Readiness Tutorials
Also, if none of these helps you will definitely need to seek support from your instructor or Institution Canvas Support.
here's a link to your Institution Support Getting Help Links
Sing out if you need a hand.
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