APLX Applix (MM)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE TO

(Rule 14d-100)

TENDER OFFER STATEMENT UNDER SECTION 14(d)(1) OR 13(e)(1)

OF THE SECURITIES EXCHANGE ACT OF 1934

APPLIX, INC.

(Name of subject company (Issuer))

COGNOS INCORPORTED
COGNOS CORPORATION

DIMENSION ACQUISITION CORP .

(Names of Filing Persons (Offerors))

W. John Jussup

Senior Vice President, Chief Legal Officer and Secretary

Cognos Incorporated

3755 Riverside Drive

P.O. Box 9707, Station T

Ottawa, ON, Canada

K1G 4K9

(613) 738-1440

(Name, address, and telephone number of person authorized to receive notices and communications on behalf of Filing Persons)

Copies to:

Kevin M. Barry, Esq.

Bingham McCutchen LLP

150 Federal Street

Boston, Massachusetts 02110-1726

(617) 951-8000

CALCULATION OF FILING FEE

This Tender Offer Statement on Schedule TO (this “Schedule TO”) is filed by (i) Cognos Incorporated, a corporation organized and existing under the laws of Canada (“Parent”), (ii) Cognos Corporation, a Delaware corporation and wholly-owned subsidiary of Parent (“Cognos”) and (iii) Dimension Acquisition Corp., a Massachusetts corporation and an indirect, wholly-owned subsidiary of Parent (“Offeror”). This Schedule TO relates to the offer by Offeror to purchase all outstanding shares of common stock, $0.0025 par value per share and the associated preferred stock purchase rights (together, the “Shares”), of Applix, Inc., a Massachusetts corporation (the “Company”), at a purchase price of $17.87 per Share, net to the seller in cash without interest thereon, less any required withholding taxes, upon the terms and subject to the conditions set forth in the Offer to Purchase, dated September 18, 2007 (the “Offer to Purchase”), and in the related Letter of Transmittal, copies of which are attached as Exhibits (a)(1)(i) and (a)(1)(ii) (which, together with any amendments or supplements thereto, collectively constitute the “Offer”).

Item 1. Summary Term Sheet.

The information set forth in the “Summary Term Sheet” of the Offer to Purchase is incorporated herein by reference.

Item 2. Subject Company Information.

(a)   The name of the subject company and the issuer of the securities to which this Schedule TO relates is Applix, Inc., a Massachusetts corporation. The Company’s principal executive offices are located at 289 Turnpike Road, Westborough, MA 01581-2831. The Company’s telephone number is (508) 870-0200.

(b)   This Schedule TO relates to the outstanding shares of common stock, par value $0.0025 per share and the associated preferred stock purchase rights of the Company.  The Company has represented in the Agreement and Plan of Merger, dated September 4, 2007, by and among Parent, Offeror and the Company that there were 16,048,654 Shares outstanding on August 31, 2007 and options to purchase 4,200,422 Shares outstanding as of August 31, 2007. The information set forth in the “Introduction” of the Offer to Purchase is incorporated herein by reference.

(c)   The information set forth in Sections 6 and 14 of the Offer to Purchase entitled “Price Range of Shares; Dividends on the Shares” and “Dividends and Distributions” is incorporated herein by reference.

Item 3. Identity and Background of Filing Person.

This Schedule TO is filed by Parent, Cognos and  Offeror. The information set forth in Section 9 of the Offer to Purchase entitled “Certain Information Concerning Offeror, Cognos and Parent” and Annex I to the Offer to Purchase is incorporated herein by reference.

Item 4. Terms of the Transaction.

The information set forth in the Offer to Purchase is incorporated herein by reference.

Item 5. Past Contacts, Transactions, Negotiations and Agreements.

The information set forth in the “Summary Term Sheet,” “Introduction” and Sections 9, 11, 12 and 13 of the Offer to Purchase entitled “Certain Information Concerning Offeror, Cognos and Parent,” “Background of Offer; Past Contacts or Negotiations with the Company,” “Purpose of the Offer; The Merger; Plans for the Company” and “The Transaction Documents,” respectively, is incorporated herein by reference. Except as set forth therein, there have been no material contacts, negotiations or transactions during the past two (2) years which would be required to be disclosed in this Item 5 between any of Offeror, the Company or any of their respective affiliates or subsidiaries or, to the knowledge of Offeror, any of those persons listed on Annex I to the Offer to Purchase, on the one hand, and the Company or its affiliates, on the other, concerning the merger, consolidation or acquisition, a tender offer or other acquisition of securities, an election of directors or sale or transfer of a material amount of assets.

Item 6. Purpose of This Transaction and Plans or Proposals.

The information set forth in the “Summary Term Sheet,” “Introduction” and Sections 6, 7, 12 and 13 of the Offer to Purchase entitled “Price Range of Shares; Dividends on the Shares,” “Possible Effects of Offer on the Market for Shares; Stock Quotation; Registration under the Exchange Act; Margin Regulations,” “Purpose of the Offer; The Merger; Plans for the Company,” and “The Transaction Documents,” respectively, is incorporated herein by reference.

Item 7. Source and Amount of Funds or Other Consideration.

The information set forth in Section 10 of the Offer to Purchase entitled “Source and Amount of Funds” is incorporated herein by reference.

Item 8. Interest in Securities of the Company.

The information set forth in Section 9 of the Offer to Purchase entitled “Certain Information Concerning Offeror, Cognos and Parent” is incorporated herein by reference.

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Item 9. Persons/Assets Retained, Employed, Compensated or Used.

The information set forth in the “Introduction” and Sections 11, 12 and 18 of the Offer to Purchase entitled “Background of Offer; Past Contacts or Negotiations with the Company,” “Purpose of the Offer; The Merger; Plans for the Company” and “Fees and Expenses,” respectively, is incorporated herein by reference.

Item 10. Financial Statements.

Not applicable.

Item 11. Additional Information.

(a)(1) The information set forth in Annex I and Sections 9, 11, 12 and 13 of the Offer to Purchase entitled “Certain Information Concerning Offeror, Cognos and Parent,” “Background of Offer; Past Contacts or Negotiations with the Company,” “Purpose of the Offer; The Merger; Plans for the Company” and “The Transaction Documents,” respectively, is incorporated herein by reference.

(a)(2), (3) The information set forth in Sections 12, 15 and 16 of the Offer to Purchase entitled “Purpose of the Offer; The Merger; Plans for the Company,” “Certain Conditions to Offeror’s Obligations” and “Certain Regulatory and Legal Matters,” respectively, is incorporated herein by reference.

(a)(4) The information set forth in Sections 7, 10 and 16 of the Offer to Purchase entitled “Possible Effects of Offer on the Market for Shares; Stock Quotation; Registration under the Exchange Act; Margin Regulations,” “Source and Amount of Funds” and “Certain Regulatory and Legal Matters,” respectively, is incorporated herein by reference.

(a)(5) The information set forth in Sections 16 and 19 of the Offer to Purchase entitled “Certain Regulatory and Legal Matters” and “Miscellaneous,” respectively, is incorporated herein by reference.

(b) The information set forth in the Offer to Purchase is incorporated herein by reference.

Item 12. Exhibits.

Item 13. Information Required by Schedule 13 E-3.

Not applicable.

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After due inquiry and to the best of its knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.

Dated September 18, 2007

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EXHIBIT INDEX

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