suggested tools for office/pdf remediation

I'm wondering if anyone has any suggestions to the best tools to remediate pdfs, office documents and excel files?
We are looking to expand accessibility testing and looking into tools.
I appreciate the advice.
Kindest regards,
Lisa

Lisa G. Wilcox (she/her/hers) / Web Design Lead / FAC-COR Level II
Certified Scrum Professional - Scrum Master
Scrum Foundations Educator
lisa.wilcox@usda.gov<mailto:lisa.wilcox@usda.gov> / 202-999-9619
USDA ERS
Office: 202-694-5574 / Fax: 202-245-4781
355 E. Street S.W.
Washington DC 20024-3221
https://www.usda.gov//<https://www.usda.gov/>





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