Need help on excel

At the right of this text boxis a coded and encrypted message.The original message was coded via the below lexicon key.After being encoded, the values were shifted by the amount shown at the immediate right

The coded and (+) shifted message was then twice encrypted, first by [Encryption A] and then by [Encryption B].

Your first task is to decrypt the message in thegiven shaded space.Then decode the message and finish by typing the phrase below where indicated.

It is preferred that you decryptthe message in the single violet-shaded matrix at the right.However, if you would rather use 1-2 additional matrices for your inverted matrices' multiplications, you may do so below the green-shaded cells; just remember to shade and label these matrices.Regardless,the final shift must be done in the violet-shaded cells' region.

Message

Shift 1226 5396 At the right of this text box is a coded and encrypted message. The original message was coded via the below lexicon key. After 263 5960 4730 8903 9641 5133 9857 2011 being encoded, the values were shifted by the amount shown at the immediate right -+ 13 -4281 6789 -3384 -3232 -6584 -7270 -3130 -4494 -7116 -6555 -129 5467 1827 3280 3563 3004 2481 3351 4044 1766 7278 7489 8091 7635 10080 10644 7047 4784 11003 7573 The coded and (+) shifted message was then twice encrypted, first by [Encryption A] and then by [ Encryption B]. -608 1575 1026 2930 7381 -2961 1112 2807 7003 773 Your first task is to decrypt the message in the given shaded space. Then decode the message and finish by typing the phrase 221 1172 -600 -411 317 301 -240 797 257 1376 below where indicated. It is preferred that you decrypt the message in the single violet-shaded matrix at the right. However, if you would rather use 1-2 Decrypt below here in this shaded space additional matrices for your inverted matrices' multiplications, you may do so below the green-shaded cells; just remember to shade and label these matrices. Regardless, the final shift must be done in the violet-shaded cells' region. Message -> Decoding 4 Decode below here in this shaded space Character D-Value Character Encryption A a dodo N d ONNW ga Encryption B NONGod DWASON\f