The conversion from base64 (Custom Base64 CharSet) to decimal for "Exponent E" is correct.
But, I think there is a conversion error on converting "Modulus N":
Code:
j9I4D7HqaQTdXNtl3mgWtnkQiz6aN+RKlqoe
To:
Code:
49608307214148501933851667872461788859314634414960570968576805395
I got:
Code:
49608213082142399816039386263750142317464556599709660835501230612
BTW, I can't download the attachment to validate my results. So, Can you provide the hexadecimal for "Modulus N".
Regards