This is the requirement as per CIC's instructions in the document checklist:
"If you are applying for permanent residence in Canada, you must provide an official letter issued by your financial institution indicating your financial profile.
Your financial profile includes a listing of all your bank (chequing and savings) and investment accounts. The official letter must be printed on the letterhead of the financial institution and must include your name, the contact information of the financial institution (address, telephone number and e-mail address), the account numbers, dates of when each account was opened and the balance of each account over the previous 6 months."
This "Financial Profile" letter from your bank account is very important, but it is often the case that banks cannot provide the letter in the exact format as prescribed by CIC. In that case, you can use supplementary documents (e.g. account statements) to collectively provide the information required. However, do ensure that you provide all information mentioned above.
For example, my bank could only provide me with a letter that stated the account opening dates and the account numbers. So I provided account statements to satisfy the requirement to include the balance over the last 6 months. I had these account statements stamped by the bank for additional credibility. This approach worked for me.